Why We Love It 

When you need that extra storage for multi-day hikes and big adventures, the 40L Fastpack is your best bet and an essential for hikers and runners who want flexibility for on the move without skimping on comfort or storage. It’s built tough, fits snug and has that lightweight comfort, making it perfect for backcountry missions or long trail days. 

Talk Nerdy To Me

A stand out feature of the Fastpack 40L is how it fits like a running vest, complete with water bottle holders up front, while still carrying weight like a proper pack. The upgraded Infiknit™ and FastFlow backpanel keeps things breathable and sweat-free, even when you're pushing the pace. With tons of external storage, a roll-top closure, and a full-side zipper for quick access, this pack is ready for just about anything you throw at it.

Fast Facts 

- Roomy front pockets fit water, phone, snacks, maps, and other small valuables

- Zip-down main compartment lets you fully open the pack for easy gear access

- Roll-top design adjusts to handle more or less gear as needed

- Stretch mesh side pockets for quick grab-and-go items

- Sliding sternum straps let you dial in the perfect fit

- Adjustable T-hook harness helps balance the load

- Quick-access pocket includes a key clip to keep things secure

- Durable MonoRip Mesh keeps things strong and breathable

- Bottles not included*