Ultraspire Zygos 4.0 Hydration Pack | 2L BPA & PVC Free Reservoir With Mag-Clip

Bryce Thatcher’s pack of choice, the Zygos 4.0 hydration pack is very versatile. This pack is lightweight and high capacity, a comfortable wrap around style with full compression allow for the lowest profile empty or fully loaded. The Zygos 4.0 comes with a 2L reservoir and a magnetic clip to keep your hands free. Whether you are fastpacking, mountain biking, in a fast race, ultra-race, or a summit assaults this hydration backpack is the solution for any athlete. Now available in five sizes.

Details

• Lightweight, soft, breathable, but strong, large-holed mesh pulls moisture away from the body to keep skin dry and cool.

• Silicone and PU coated feather-weight nylon fabrics resist water, abrasion and tears.

• Max O2 Sternum for unrestricted breathing while maintaining a stable pack. Uses shock cord with good stretch for unrestricted breathing but also good rebound on the stretch for a stable ride. Patent Pending.

• Plush feeling micro-fiber polyester edges, soft and non-abrasive against skin and clothing.

• Sweat proof webbing—won’t absorb water or get saturated and heavy.

• Safety stitched bar tack on all stress points.

• Quiet, bounce free, easy to see and use, zipper pulls.

• Zig zagged stitching over elastic for ultra-durability, increased stretch and rebound.

• Simple, fast, easy in and out bladder attachment.

• Rapid access sweat-free magnon pocket for to pills and other essentials. Patent pending.

Fit: Unisex

Size(s): XXS (26”-32”), XS (28”-34”), SM (30”- 36”), MD (32”-38”), LG,(34”-40”)

Hydration (included): 2L Reservoir with mag-clip to secure hose.

Bottle Compatible (not included): UltraFlask, Formula 250, Human 20 oz 2.0, or Collapsible Bottle Capacity: 854 c.i. (14 L)

Weight: 16.0 oz (454 g)

Built for the competitive athlete. Our Race Line focuses on Ultra & Trail running but can be used in any running scanario. Our Race Line products are sized to fit the athletic body, feature UltrAcool technology for maximum breathability on all race vests, made with very lightweight material for comfort during long distances, and created for pure performance.

Hydration Included

2L Reservoir with mag-clip to secure hose

2L Reservoir with mag-clip to secure hose

Not included

Not included

Sizes

Small (30″-34″), Medium (33″-37″) or Large (36″-42″)

XXS (26”-32”), XS (28”-34”), SM (30”- 36”), MD (32”-38”), LG,(34”-40”)

Universal

Universal

14.0 oz (396 g)

16.0 oz (454 g)

33 oz (935 g) with frame / 26 oz (737 g) without frame

18 oz (510 g)

570 c.i. (9.34 L)

854 c.i. (14 L)

1526 c.i. (25 L)

915 c.i. (15 L)

Recommended Use

From 50 k to 100-mile ultra-trail racing in high mountains or with the lists of gear required

Fastpacking, mountain biking, racing, ultra racing, and summit assaulting.

Trail Runing, Mountain Biking, Canyoneering, Fast Packing, Mountaineering, Rock Climbing.

Extreme multi-day, self-supported endeavors. Mountain biking, rock climbing, trail running, canyoneering.

• FEATURES – Quiet, bounce free, lightweight, soft, breathable, but strong; its large-holed mesh pulls moisture away from the body to keep skin dry and cool; sweat-proof webbing which won’t absorb water or get saturated and heavy
• FLUID CAPACITY – 2L reservoir with mag-clip to secure the hose; compatible with UltraFlask, Formula 250, Human 20 oz 2.0, or collapsible bottle (not included)
• MAX O2 STERNUM – For unrestricted breathing while maintaining a stable pack. Uses shock cord with good stretch for unrestricted breathing but also good rebound on the stretch for a stable ride
• CARRY EVERYTHING YOU NEED – Rapid access pocket and let the consumer decide what goes in, such as gels, foods, pills, electrolytes, keys, a cell phone or any other small personal device, a credit card or money, and even light clothing
• RECOMMENDED USE – For fast-packing and mountain biking; in a fast race, ultra-race, or a summit assaults this hydration backpack is the solution for any athlete