Camelbak Crux 1.5L Reservoir Men's Shoes OS1st's Compression Zone Technology applies

OS1st's Compression Zone Technology applies varying levels of pressure to 11 different zones

2% Spandex

they may alter the fit in some racing shoes that come with either thin or no removable insoles

add the Spartan Pants

The Y-gore heel cups your foot in the shoe securely

Camelbak Crux 1.5L Reservoir Men's Shoes OS1st's Compression Zone Technology appliesIf theres one thing we know best, its water. Our athletes, customers and colleagues told us they wanted a reservoir that delivered more water per sip, with a foolproof design that made it easy to fill up and hit the trail. The Crux delivers 20% more water per sip, with an ergonomic handle for easier refilling, and an on off lever that makes it easy to prevent leaks. Like all of our gear, we put the Crux through exhaustive stress tests to make sure