Burton Says: First chair to last, you shred 'til your legs are dead. After eight hours locked in your boots, you know how important long-lasting comfort is. With the smooth, kink-free flex of an articulating cuff, precision fit of a heat-moldable Imprint liner, shock-proof air cushioning and overall light-weight, the Hail trickles SL-10 uber tech to couch-surfing, ticket-clipping levels. Hea...

Sierra says: The Phase has everything in a sock that you will need. With medium and extra-density padding throughout the sock you will never have any rubbed areas. It?s lightweight and breathable so you don?t have to worry about sweating. Burton says: As tech as a sock can get!