The Wunder Puff large Everywhere Belt Bag is one of the most popular bags lululemon sells. Right now you can get it for under $30. Be sure to snag a bag for yourself before they're out of stock.

Goruck has a reputation for making well-made, tough bags, and the Goruck Gym Bag Ripstop Robic is no different. It’s slightly less organized than the KNKG Plus Duffel, but it’s nearly as durable.

The Everywhere Belt Bag 1L Wunder Puff Shine, originally $58, is now $29 at Lululemon, and shoppers say it's a "must-have." "Love this bag's versatile shoulder-to-waist options." ...

Reese’s Duffel Puff Bag for Reese’s Puffs cereal (say that five times fast) will be available for fans to purchase Tuesday, Dec. 10, in-store at KidSuper and online at KidSuper.com for $295.

Let’s be real, if your fitness routine bounces from a spin and Pilates class to that suspiciously sweaty HIIT session your friend dragged you to, your gym bag better be as versatile as your schedule.

That settles it: I'm keeping my gym bag at the ready right by my front door, where I can admire it while it mocks reminds me to get moving. $140 at Calpak.