If gym bags could talk, yours might have a horror story to share. It's been with you through countless sessions of cardio, ...

It’s surprisingly compact, and we found it can fit into cube-sized gym lockers and move through busy crowds without knocking into people. We also appreciate that the bag is pretty indestructible.

But, if you pick a bag with space for trainers, your packed lunch, and a laptop, then you should check out the lockers at your gym before buying, as some larger bags might not fit. And of course ...