Ultraspire Mountain Racer Waist Pack - 2027

UltrAspire Mountain Racer Waist Pack

For moving fast in the mountains, the Mountain Racer is built to carry the essentials without getting in the way. Whether you're heading out for a long trail run, linking ridgelines, or putting in a big day on technical terrain, this waist pack gives you the storage and organization you need while keeping things light and streamlined.

The 3-liter capacity offers a surprising amount of room for hydration, nutrition, your phone, and extra gear. A large front pocket with an internal phone sleeve and layered zippered storage keeps the important stuff organized and easy to reach, while the two side pockets give you quick access to fuel and smaller essentials. The rear compartment fits the included 800 mL soft flask, and removable pole attachments make it easy to carry Z-poles when the route calls for them.

Built with durable EnduraMesh XT fabric, the Mountain Racer is designed to handle the wear and tear of rugged mountain use. Its close, ergonomic fit helps keep everything stable when you're moving over uneven ground, climbing steep trails, or picking up the pace on the descent. It's also compatible with UltrAspire's waist-light bracket (sold separately), giving you the option to add lighting for early starts or late finishes.

Think of it as a streamlined mountain tool for days when you want to move fast, carry what matters, and leave the bulk of a full pack behind. Ideal for long training runs, mountain races, and fast-and-light missions where access, stability, and efficiency make all the difference.

Specs

• Capacity: 3L

• Weight: 6.4 oz (182g)

• Hydration: Includes 800 mL soft flask with locking cap

• Storage: Front kangaroo pocket, internal phone sleeve, zippered storage, and two side pockets

• Pole carry: Removable rear Z-pole attachments

• Lighting: Compatible with UltrAspire waist-light bracket (sold separately)

• Material: EnduraMesh XT high-durability ripstop blend

• Fit: Unisex, sized by waist measurement

• Sizes: S, M, L, XL