You can run with this, hike, bike, or ski...boundaries don't matter with the Fastpack 25.
Sizing at Chest (Unisex):
S/M: 64 cm - 102 cm
M/L: 76 cm - 122 cm
Measure wearing the clothes you intend to wear
A pack full of gear will fit smaller
Secured Volume: 24L / 1465 in3
Unsecured Volume: 5.2L / 317 in3
Total Volume: 29.2L / 1782 in3
Weight: 19.43 oz / 555g
Dimensions: 27.6" x 11" x 8.3" / 70 cm x 28 cm x 21 cm
MonoRip Mesh: Breathable, non-stretch, and hydrophobic - this lightweight monofilament mesh is ideal for bounce-free load carrying
100D Robic Triple-Ripstop: High-tenacity nylon for strength and durability
Power Span Stretch Mesh: High-strength, durable stretch mesh allows you to see inside pocket to view contents
In 1985 Ultimate Direction invented the entire category of hydration packs. We designed the first waist pack designed to carry bottles, a few years later created the first pack/strap to carry a water bottle in your hand, and made numerous other innovations that helped define what a hydration pack is today.
Our products are Designed by Athletes for Athletes. Some of the best runners in the world thought long and hard about what works the best, and the result is the amazing features you see today. Our women's collection was designed by women, which is why it looks, feels, and fits completely different.