ACS + OG Size:4.5 UK A weatherproof no-compromise hiking shoe

A weatherproof no-compromise hiking shoe featuring Active Chassis technology for lateral guidance

and swing weight reduction while a long list of tech enhances pop and stability at high speeds

An ultra-light

you stay dry and fresh without feeling weighed down – from deep winter storms to springtime slush

ACS + OG Size:4.5 UK A weatherproof no-compromise hiking shoeArchive style, progressive vision. Take a peek into our archives. In homage to quintessential technical footwear, ACS + OG is a modern adaptation of archive gold, of a shoe that shaped years of trail running expertise. Rooted in history, reinvented and upgraded with a stride stabilizing Agile Chassis System for a progressive adaptation of a true trail icon.