15 Amazon Gym Bags That'll Make You Want to Exercise — All Under $50

WANDF Drawstring Backpack ($20)

If it's been a while since you used a drawstring backpack, modern versions like this one are more spacious than you might remember. This one has a dedicated shoe compartment, a main compartment with zippered compartments, and two mesh side pockets for a water bottle or wet umbrella. Shoppers say it's "extremely high-quality" and "very durable."