On Running Merino Ultra Sock Colour:Black Chevron lugs: Lug design with

Chevron lugs: Lug design with deep penetration and multi-directional grip

Knitted Tongue: Enhances step-in comfort and lockdown

A renewable resource

and durability for high-performance training

Simplified and refreshed

On Running Merino Ultra Sock Colour:Black Chevron lugs: Lug design withOn Running's first dedicated trail running sock with a high tech ergonomic construction for max comfort and protection. Made from merino wool and recycled nylon Open mesh channels for ventilation Anti slip underfoot tech Support on arch and upper heel Reflective yarn on cuff Ergonomic toe construction Zonal terry cushioning Merino wool helps regulate heat