Yoga mat under one arm, trainers in the other, gym kit stuffed into whatever was nearest: sound familiar? A proper women's gym bag helps with that. We've edited the best women's gym bag styles from Nike, adidas, Sweaty Betty and more, so studio days, HIIT sessions and early runs all get a bag that fits. Structured backpacks for the trainers-and-kit-change kind of day, soft totes for early yoga mornings, compact sports backpack styles for travelling light.