On Merino Ultra Sock - Black Sock Size:XS UK 2.5-4 forward the email to the

forward the email to the recipient

Flat knit collar for comfort and a secure fit

Wear detection allows for automatic device pairing for new workouts

and unmatched protection from dirt and debris all in a lightweight

offering minimum weight and maximum support for the most extreme conditions

On Merino Ultra Sock - Black Sock Size:XS UK 2.5-4 forward the email to theON's first dedicated trail running sock with a high tech ergonomic construction for max comfort and protection. Tech & Features: Weight: 71g 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 Product Code: 2UE30660553