everywhere belt bag lululemon white opal 1L (Neo Mint) This nano version of our Everywhere Bag fits earbuds Lululemon's viral belt bag now

The Crowd Designz Smart Gym Duffel Bag is a comparable Gym backpack with Sports features

My picks are based on extensive field testing of many packs of all types over more than 25 years of reviewing gear while backpacking and hiking all across the U.S., including the 10 years I spent as the lead gear reviewer for Backpacker magazine and even longer running this blog

The packs specially designed reservoir slides in horizontally, sitting low on your back for improved comfort and less bounce than the typical hydration pack sleeve which stores the reservoir vertically against your back

It feels noticeably lighter and less bulky than many traditional trekking packs, yet still offers enough structure and support for proper multi-day use