OS1st DS6 Night Time PF Treatment color-grey When you're hauling a week

When you're hauling a week of gear to the backcountry or checking a bag for a long trip

Stretch woven nylon for a durable storage and stretch mesh for quick stash on the fly

When the temperature drops but you still need your arms free to move

Lightweight Kinvara platform

OS1st DS6 Night Time PF Treatment color-grey When you're hauling a weekA performance sock designed for active individuals who need comfort and moisture management, the OS1st DS6 Night Time PF Treatment delivers targeted cushioning with breathable construction. The secure fit stays in place during hard efforts without bunching or slipping. Built for daily training and long efforts. Targeted cushioning for comfort Moisture wicking construction Secure, stay in place fit Breathable for temperature control Durable for daily