Darn Tough Men's Captain Stripe Over-the-calf (1815) YakAttack split ring

split ring

so it can stay in its prime and far outlast any other slider lids out there

And its extreme insulation means your ice is staying ice

our burliest medium-to-large capacity water storage and delivery systems are perfect for everything from alpine- to road warrior-style expeditions

Darn Tough Men's Captain Stripe Over-the-calf (1815) YakAttack split ringAll mountain. All American. The Captain is a proud sock from our mill in Vermont. Light, fast and ready to rip. Performance Fit: No slipping, no bunching, and no blisters. Fine Gauge Knitting: Unprecedented durability and our unique put it on, forget its on feel. Fast Action Wicking: Pulls moisture away from skin. Fast drying. All Weather Performance: Cool in the summer, warm in the winter. Guaranteed For Life: No strings. No conditions. For life.