Our range of women's base layer tops is ideal for both warm weather and cold weather training, while our women's thermal tops will keep you warm whatever the weather on your outdoor trips and through your everyday life. Base layer tops for women benefit from modern tech like sweat-wicking and breathable fabrics to keep your skin feeling dry, while also providing you with warmth during winter exercise and breathability in the summer, making them an essential pick for any workout lover. We have both short sleeve and long sleeve base layers and thermal tops here, with a wide variety of different styles from big brands like Under Armour, Nike and Campri.