Key features
Weight: 73g
Limited-edition design by On × POST ARCHIVE FACTION (PAF)
Highly technical design for trail and road running
Soft merino wool blend
Open mesh channels for ventilation
Anti-slip underfoot tech
Cushioned rib support on arch and upper heel
Terry cushioning on lateral ankle side
Ergonomic toe construction

Your running go-to
This technical performance sock has been put through its paces in the On Lab – and it shows. It’s ergonomically designed from the sole up, with built-in cushioning to protect your feet on tough terrain. Plus, anti-slip tech for added security.

PAF meets performance
Korean design meets Swiss engineering in this slick collaboration piece. Blending street style with high-octane outdoor performance in a special limited-edition from On × POST ARCHIVE FACTION (PAF).

Built to breathe
Constructed in a merino wool blend with open mesh channels for high ventilation, this sock lets your feet breathe when it’s needed most. Taking you from road to trail in breezy, well-cushioned comfort.