Best Cotton Thermal Bottoms for Women of 2025

The Daisy Dreamer Thermal Pants offer a stylish and comfortable solution for staying warm during winter. The pointelle thermal underwear features a ribbed construction that adapts to your body's contours, ensuring a snug fit. With a brushed interior, these pants trap warm air close to your skin, providing extra warmth without bulk. Made from pure cotton, they are lightweight and breathable, while the anti-odour technology keeps them feeling fresh even after extended wear.

The Adore Thermal Long Johns are designed to keep you warm and comfortable during colder days. They are brushed for extra warmth, providing a soft feel against your skin. The heat trap technology ensures that body heat is retained, making them perfect for chilly weather. Available in classic colours like White or Charcoal, these long johns are made from a blend of 50% cotton and 50% polyester, offering both comfort and durability. Plus, they're machine washable, making them easy to care for and maintain.

ALBERT KREUZ Leggings are stylish and made from organic stretch cotton, ensuring a soft and comfortable fit. You can enjoy wearing them casually, whether during the day or at night. These leggings also serve as thermal bottoms, making them perfect for cold weather or winter sports. The breathable fabric feels pleasant against your skin, providing high wearing comfort throughout the day.

The Fruit of the Loom Union Suit is a cosy, one-piece thermal bottom ideal for chilly nights. Made from soft micro waffle fabric combining U.S. sourced cotton and recycled polyester, it ensures a comfortable fit that stretches with your movements. The half-length front button closure adds ease when getting dressed, while the cuffed wrists and ankles effectively trap heat, keeping you warm. A tag-free neck label further enhances comfort, preventing irritation during wear.