Best Polyester Underwear for Boys of 2026

Name: Harte & Soul Boys 7 Pack Days of the Week Boxer Shorts - Cotton Polyester Blend
Brand: Harte & Soul

John Zimmer

Last Updated: 10 Feb 2026

* We independently evaluate all recommended products and services. If you click on links we provide, we may receive compensation.

Polyester underwear for boys is a comfortable and practical choice for everyday wear. Made from durable and breathable fabric, these undergarments provide a snug fit that stays in place throughout the day. The moisture-wicking properties of polyester help to keep boys feeling fresh and dry, making it an ideal option for active youngsters. With a range of styles and colours available, there is something to suit every taste. Upgrade your child's underwear collection with these quality polyester options.

At a Glance: Our Top Picks

#TOP 1

Harte & Soul Boys 7 Pack Days of the Week Boxer Shorts - Cotton Polyester Blend

9.9

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Harte & Soul Boys 7 Pack Days of the Week Boxer Shorts - Cotton Polyester Blend

#TOP1

9.9

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#TOP 2

The Essentials Wardrobe Boys TEW 5 Pack Trunks

9.8

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The Essentials Wardrobe Boys TEW 5 Pack Trunks

#TOP2

9.8

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#TOP 3

The Essentials Wardrobe Boys TEW 5 Pack Trunks

9.6

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The Essentials Wardrobe Boys TEW 5 Pack Trunks

#TOP3

9.6

Read Review

Top 10 Polyester Underwear for Boys

#TOP 1

Harte & Soul Boys 7 Pack Days of the Week Boxer Shorts - Cotton Polyester Blend

Harte & Soul

Multicolour

13 Years

Harte & Soul Boys 7 Pack Days of the Week Boxer Shorts – Cotton Polyester Blend – Soft Elastic Waistband – Ages 13 Years Multicolour

9.9

FTB Score

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Features

7 PACK VALUE SET: Designed For Convenience And Fun, This 7-Pack Includes One Pair For Each Day Of The Week In A Range Of Bright Waistband Colours. With A Fresh Pair For Every Day, Mornings Become That Little Bit Easier — And More Fun! Each Pair Features A Smooth, Stretchable Waistband That Fits Snugly Without Pinching.

FUN DAYS OF THE WEEK BOXERS: Add A Playful Twist To Your Child's Underwear Drawer With Harte & Soul Boys Days Of The Week Boxer Shorts. Each Pack Includes Seven Pairs Featuring The Days Of The Week On The Waistband, Helping Kids Stay Organised And Start Each Day With A Smile.

SOFT COTTON BLEND: Made From A Comfortable 65% Cotton And 35% Polyester Blend, These Boxer Shorts Offer A Soft And Breathable Feel That's Gentle On Young Skin. Durable And Easy To Care For, They're Perfect For Everyday Wear — Whether At School, Sports, Or Playtime

SIZES: Available In 5–6 Years, 7–8 Years, 9–10 Years, 11–12 Years, And 13 Years.

SHOP THE HARTE & SOUL COLLECTION: Discover The Perfect Blend Of Comfort, Style, And Value With Harte & Soul. Explore Our Full Range Of Men's Underwear, Nightwear, And Clothing — Thoughtfully Crafted To Deliver Everyday Quality At An Affordable Price.

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#TOP 2

The Essentials Wardrobe Boys TEW 5 Pack Trunks

The Essentials Wardrobe

Camo

8-9 Years

The Essentials Wardrobe Boys TEW 5 Pack Trunks - 8/9 YRS - Camo

9.8

FTB Score

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Features

4-Way Stretch Elastane: Our Boys' 5-Pack Boxer Trunks Are Designed With Multiway Elastane Stretch, Providing Exceptional Flexibility And A Comfortable Fit That Adapts To Your Child's Movements. Crafted From Soft, Breathable Fabric, Offering Superior Comfort And A Luxurious Feel Against The Skin. Enjoy Enhanced Support Throughout The Day, Whether Your Child Is At School Or Relaxing At Home. Ideal For Maintaining Comfort During Various Activities.

Premium Quality 5-Pack: Our Boys' 5-Pack Boxer Trunks Are Made From High-Quality Materials To Ensure Maximum Comfort, Durability, And Lasting Wear. Each Pair Is Crafted From A High-Quality Blend Of Cotton And Polyester, Featuring A Soft, Breathable Fabric That Feels Luxurious Against The Skin. Designed With A Stylish Line Game Pattern, These Boxer Trunks Add A Fun And Playful Touch To Your Child's Wardrobe.

Soft Elasticated Premium Waistband: These Boys' 5-Pack Boxer Trunks Are Designed With Soft, Elasticated Premium Waistband. The Soft Elasticated Waistband Offers A Secure Yet Gentle Hold, Ensuring Exceptional Comfort Without Causing Any Irritation. These Features Combine To Deliver Cool, All-Day Comfort, Making These Boxer Trunks Ideal For Both Everyday Wear And Active Lifestyles.

Ideal Fit With Multiple Sizes: Our Boy's Boxer Shorts Are Available In A Range Of Sizes To Ensure The Perfect Fit For Everyone. To Ensure You Select The Perfect Size, Please Refer To The Size Chart Available In The Product Images. The Chart Provides Detailed Measurements And Guidance, Helping You Choose The Best Fit For Maximum Comfort And Support.

Double Fabric Front Panel: These Boys' Boxers Are Designed With A Double Fabric Front Panel For Enhanced Durability And Comfort. This Feature Provides Additional Support And Extends The Lifespan Of The Underwear, Ensuring It Can Withstand The Rigours Of Everyday Wear. The Reinforced Front Panel Not Only Offers Extra Protection But Also Maintains The Boxers' Shape And Structure, Providing Reliable And

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#TOP 3

The Essentials Wardrobe Boys TEW 5 Pack Trunks

The Essentials Wardrobe

Bright

6-7 Years

The Essentials Wardrobe Boys TEW 5 Pack Trunks - 6/7 YRS - Bright

9.6

FTB Score

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Features

Comfortable Fit And Stretchy Fabric: Experience Unparalleled Comfort With Our Boys Cotton Boxers, Designed With A Soft Jacquard Waistband. The Stretchy Fabric Offers Freedom Of Movement All Day Long, Whether Your Child Is At School Or Playing At Home. Enjoy Ultimate Comfort That Moves With Your Little One Wherever They Go.

Pack Of 5 Boys Boxers: Elevate Your Underwear Collection With Our 5-Pack Of Boxers For Boys. Crafted From Soft, Breathable Cotton Rich Fabric, These Boys Underwear Offer A Comfortable And Good Fit For Everyday Wear. Ideal For Any Occasion, This Boys Multipack Of Boxers Ensures You Have A Fresh Pair Ready Whenever You Need It.

Soft Hand Feel: These Boys Boxers Are Crafted With Soft Touch Fabrics That Provide A Luxurious, Soft Hand Feel, Offering A Gentle Touch Against The Skin. The Fabric Selection Is Carefully Made To Prioritise Comfort, Ensuring That Boys Can Wear Them All Day Without Experiencing Any Discomfort Or Irritation.

Sizes 2-13 Available: Our Boys Boxer Pack Provides A Comprehensive Range Of Sizes From 2-13, Ensuring An Ideal Fit For Various Body Types. This 5-Pack Underwear Set Is Available In Black And Assorted Colours, Offering Versatility And Style For Daily Wear.

Great Quality: Experience Premium Quality With Our Boys Underwear, Offering The Perfect Blend Of Comfort And Flexibility. Crafted From, 60% Polyester, 35% Cotton And 5% Elastane, These Undergarments Provide Superior Softness And Stretch, Ensuring A Comfortable Fit That Moves With You.

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#TOP 4 Best Colourful Underwear for Boys

Boys 7 Days of the Week Boxer Trunks

Generic

AA7460B-Boys 7 Days Boxer 7-8 Years

Pack of 7 Black

7-8 Years

Boys 7 Days of the Week Boxer Trunks Cover

Boys 7 Days of The Week Every day Breathable Underwear Essentials Boxer Trunks (7-8 Years,Multicolour)

9.6

FTB Score

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The Boys Boxer Shorts offer a soft and cozy fit, making them feel as comfortable as a cloud against your skin. Made from a blend of 60% cotton and 40% polyester, these boxers effectively wick away moisture, keeping you dry throughout the day. The elastic waistband ensures a secure yet gentle fit, allowing for all-day wear without discomfort. Additionally, the functional button-fly closure adds a classic touch and convenience for wearing at home or during activities.

What We Like

Soft and lightweight

Moisture-wicking fabric

Comfortable elastic waistband

Classic button-fly design

#TOP 5 Best Classic Underwear for Boys

ShopMCR Boys Everyday Boxer Shorts Pack

ShopMCR

BoySTD11/12y3P

12-13 Years

ShopMCR Boys Everyday Boxer Shorts Pack Cover

ShopMCR 3 Pack Boys Everyday Essential Boxer Shorts Classic Underwear Cotton Trunks Multipack colour Kid Underpants Comfort Waistband Boxer Brief with Fly 5-13 Years Pants (Striped, 12-13 Years)

9.4

FTB Score

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ShopMCR Boxer Shorts offer elevated comfort and style with their thoughtful design tailored for boys aged 5-13. The assorted pack features 2 striped trunks and 1 solid colour, allowing your child to express their personality. With a comfort waistband and practical fly, these trunks ensure a snug fit for active lifestyles. Made from soft, breathable materials, they provide modern comfort while maintaining a timeless appeal, making them perfect for daily wear at school or during play.

What We Like

Soft and breathable materials

Variety of colours and patterns

Comfort waistband for snug fit

Durable and stylish design

#TOP 6

New Balance Boys' 3.5" Performance Boxer Briefs Trunks Underpants

New Balance

NB6003-4-854NL1416

14-16 Years

New Balance Boys' 3.5" Performance Boxer Briefs Trunks Underpants Cover

New Balance Boys' 3.5" Performance Boxer Briefs Trunks Underpants (4 Pack), Lava/Avalanche Grey/Black/Avalanche Lava, Large

9.4

FTB Score

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Features

Ultimate Comfort: Made From 92% Polyster And 8% Spandex, These Boxer Briefs Are Tagless To Avoid Irritation To The Skin. They Are Soft, Comfortable And Durable For Everyday Wear.

What's Included: 4 New Balance Boys' 3.5" Performance Trunks. The Underwear Is Available In Multiple Colors And Designs And Comes In Multiple Sizes: X-Small (4-6), Small (6-8), Medium (10-12), Large (14-16), And X-Large (16-18).

Superior Design: The Moisture Wicking Feature Releases Mositure Away From The Body And The Fast Drying Makes It Perfect For Play On The Field. The Wide And Soft Logo Waistband Is Made For Comfort.

How To Wash: Washer And Dryer Safe! Machine Wash Cold With Like Colors. Tumble Dry Low. For Long Lasting Wear, Do Not Bleach, Iron, Dry Clean Or Use Fabric Softener And Dryer Sheets.

Features: The Contoured Pouch Makes It An Ideal Fit With The Gussett For Enhanced Movement. The 360 Degree Stretch On The Boxer Briefs Allow For Easy Movement And Comfort. Perfect For Everyday Wear.

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#TOP 7

Fashion by Purdashian Boys Pants

Fashion by Purdashian

3-4 Years

Fashion by Purdashian Boys Pants | Multipack Cotton Mix Underwear | Young Boys Potty Training Toddler Briefs (UK, Age, 3 Years, 4 Years, Regular, Pack of 7 - Mixed Colours)

9.3

FTB Score

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Features

Material - Our Boys Pants Are Made From 65% Polyester And 35% Cotton Which Allows The User To Have The Comfort Of Cotton And The Elasticity For Freedom Of Movement.

Everyday Comfort And Wear – These Comfortable Boys Pants Are Made To Offer Maximum Comfort And Breathability Which Is Ideal For Daily Wear. We Always Use A Cotton Mix For Our Boys Underpants, As It Makes Them Lightweight And Breathable Whilst Being Durable And Machine Washable.

Super Comfortable - These Boys Briefs Are Extremely Comfortable Thanks To Their Elasticated Waist And Legs. Our Boys Underpants Are Made From A Cotton Mix Making Them Super Soft, Breathable And Lightweight.

Multiple Sizes Available - Our Boys Underwear Are Available In A Great Variety Of Sizes, Ages 2-3 Years, 3-4 Years Are Great For Potty Training Pants, While Ages 5-6 Years, 7-8 Years Offer Everyday Comfort.

Design - Our Cotton Mix Boys Underwear Is Moisture Wicking, Keeping You Fresh And Odour Free All Day. They Are Full Brief That Will Not Ride Up Or Give You A Wedgie.

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#TOP 8

Kids Thermal Underwear Set Long Johns & Long Sleeve Top Warm Winter Base Layer 0.45 Tog Brushed Cotton Polyester Thermal Underwear

Generic

White

13-14 Years

Kids Thermal Underwear Set Long Johns & Long Sleeve Top Warm Winter Base Layer 0.45 Tog Brushed Cotton Polyester Thermal Underwear Cover

Kids Thermal Underwear Set Long Johns & Long Sleeve Top Warm Winter Base Layer 0.45 Tog Brushed Cotton Polyester Thermal Underwear for Boys and Girls- White Top & Bottom Set 13-14 Y

9.3

FTB Score

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Features

Soft Brushed Interior For Comfort – Inside Is Brushed To Feel Gentle Against Skin, Reducing Itchiness And Allowing Extended Wear Under Other Clothes.

Maximum Warmth With 0.45 Tog Fabric – Special Thermal Construction Traps Body Heat Without Bulk To Keep Children Warm In Cold Weather, Ideal As A Winter Base Layer

Wide Size Range & Colour Options – Available In Sizes 5-6, 7-8, 9-10, 11-12, 13-14 (years). Comes In White, Grey And Black To Match Outfits Or Outer Layers.

Complete Two-Piece Base Layer – Includes Both Long Sleeve Top And Long John Bottoms So Your Child Has Full Coverage For Skiing, Outdoor Play Or Daily Winter Layering.

Balanced 50/50 Cotton Polyester Blend – Offers Durability, Breathability, Stretch And Moisture Management — Perfect For Active Kids.

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#TOP 9

AUYAO Kids Thermal Base Layer Sets

AUYAO

4423459

Black

8-9 Years/Size26

AUYAO Kids Thermal Base Layer Sets Cover

AUYAO Kids Thermal Base Layer Sets, Boys' Compression Leggings Athletic Shirt, Youth Boys Compression Thermal Underwear, Athletic Kids Thermal Long Sleeve Top and Legging Compression Set for Sport Ski

9.3

FTB Score

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Features

Moisture Wicking Quick Drying: The Kids Long Underwear Set Is Breathable And Has A Moisture Wicking System, The Bottom Layer Draws Moisture Away From The Skin After Sweating, Dries Quickly, And Isolates From The Cold. Keeping The Skin Dry Will Provide A Better Wearing Experience For Your Child And Will Not Produce A Particular Odor.

Comfortable And Warm Material: The Kids Thermal Underwear Set Is Made Of A Blend Of Polyester And Spandex To Ensure Comfort, Warmth, Stretch And Moisture Resistance. This Boys Thermal Underwear Set Is Skin-Friendly And Non-Irritating, Itchy, And Will Become Your Kids' Favorite Underwear In Cold Weather.

Perfect For Any Activity: The Boys Ski Underwear Is Made Of Four-Way Stretch Fabric, Which Allows For Complete Freedom Of Movement And No Restriction. Designed For Both Indoor And Outdoor Activities. Such As Football, Rugby, Skiing, Ice Hockey, Cycling, Snowboarding, Walking, Running, Hunting, Etc.

Freedom Of Movement: The Thermal Underwear Set For Kids Features Four-Way Stretch Fabric, Allowing Your Child To Move Freely Without Feeling Restricted. Smooth Seams And Flat Seams Prevent Chafing And Discomfort While Wearing. Whether Playing In The Snow, Skiing, Or Running Around, This Set Will Give Them The Flexibility They Need For All Their Adventures.

Create Comfortable Skin Feel: This Boys Thermal Underwear Set Is Super Soft And Comfortable, With Seamless Inner Layer, Very Suitable For Children's Delicate Skin. Suitable As A First Layer In Daily Life, As A Cozy Pajamas At Night, Or As A Thermal Underwear For Outdoor Activities In Cold Weather.

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#TOP 10

Sock Stack Pack Of 6 Kids Boxers Woven Boxershorts Underpants Loose Fit Comfort Elastic Waistband Boys Boxer Underwear

Sock Stack

Multicolor

11-12 Years

Sock Stack Pack Of 6 Kids Boxers Woven Boxershorts Underpants Loose Fit Comfort Elastic Waistband Boys Boxer Underwear Cover

Sock Stack Pack Of 6 Kids Boxers Woven Boxershorts Underpants Loose Fit Comfort Elastic Waistband Boys Boxer Underwear For Kid KB01, 11/12 Years Multicolor

9.3

FTB Score

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Features

Woven Boxershorts: The Boxers Are Made With A Woven Fabric That Is Durable And Designed To Last Through Multiple Washes.

Pack Of 6 Kids Boxers: This Set Of Boxers Includes 6 Pieces, Making It Easy For You To Stock Up On Your Child's Underwear Essentials.

Material: The Boxers Are Made From A Blend Of 65% Polyester And 35% Cotton, Providing A Soft And Comfortable Feel Against Your Child's Skin.

Loose Fit: The Boxers Have A Loose Fit Design, Providing Comfort And Freedom Of Movement For Your Child.

Elastic Waistband: The Elastic Waistband Ensures That The Boxers Stay In Place And Do Not Slide Down, Providing A Secure And Comfortable Fit.

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Editor's Notes

During our polyester underwear for boys research, we found 306 polyester underwear for boys products and shortlisted 10 quality products. We collected and analyzed 24,740 customer reviews through our big data system to write the polyester underwear for boys list. We found that most customers choose polyester underwear for boys with an average price of £20.00.

The polyester underwear for boys are available for purchase. We have researched hundreds of brands and picked the top brands of polyester underwear for boys, including Harte & Soul, The Essentials Wardrobe, ShopMCR, New Balance, Fashion by Purdashian.

Written by

John Zimmer

John Zimmer is a truly professional writer on findthisbest.com. He has specialized in writing content a wide variety of fields for over a decade. Since 2011, he has been using his expertise and extensive experience to write content for online shopping guide websites. In addition to writing for findthisbest.com, he has appeared in publications such as The Spruce, Wirecutter and Bestbuy.