Ultimate Direction Fastpack 20L Daypack – Running, Hiking & Travel Vest-Fit Pack

Meet the Ultimate Direction Fastpack 20L Daypack, a lightweight option designed for speed in the backcountry. It blends a vest-like harness with generous storage and multiple access points, so you can stay lean on the move without sacrificing essentials.

Designed for running, trekking, or fast-and-light hiking, this pack distributes weight through a vest-like fit while offering strategic external pockets. The result is a pack that travels with you rather than getting in your way.

Smart access for on-the-go gear

Storage and access are central to the design. A roll-top closure lets you expand or compress the load, while a zip-down opening provides quick access to the main compartment when you need items fast.

• Front harness pockets keep water bottles, snacks, and your phone within easy reach for quick access on the move.
• The roll-top design supports volume changes and helps keep essentials secure as you switch between pace and terrain.

Comfort that travels with you

The back panel uses Infiknit seamless harness technology with Fastflow ventilation to deliver a breathable, anti-chafe fit for all-day comfort. Lightweight yet durable, the pack sits close to your torso so movement feels natural.

• Infiknit makes the harness feel smooth against skin and reduces rubbing during long sessions.
• Fastflow ventilation encourages air between the back and the pack, helping you stay cooler on warm days.

Storage, capacity, and compatibility

With a capacity of 23.4 L, this 1.3 lb pack (without bottles) keeps essentials accessible without weighing you down. The body is built from 100% polyester and is hydration bladder compatible, with full external access options for quick pulls and stashes.

In addition to internal space, the pack offers plenty of external storage and a full-side external zipper for easy access to items inside, even when the pack is cinched down.

Practical notes

Whether you are trail running, mountain biking, or traveling light, the Fastpack 20L is designed to adapt to a variety of outdoor activities. Consider how the vest-like fit and front-bottle storage may streamline your pace and transitions on mixed terrain.