Merino Ultra Sock

Our first dedicated trail running sock with a high-tech ergonomic construction – for max comfort and protection.

$18.00

Product ID: 23574 SKU: 2UE30660561 Category: On Accessories Brand: On

Key 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

Tested by athletes

These ultra-high performance socks are ergonomically designed from the sole up, with built-in support and cushioning to protect your feet on even the toughest terrain.

Reduced slippage

Innovative anti-slip technology to keep your speed up, even when the going gets tough. Smart underfoot tech and friction free yarn means that your socks won’t go sliding around inside your shoe. For added security in your stride.

Built to breathe

Constructed with merino wool and recycled nylon with open mesh channels for ventilation. The Merino Ultra Sock with its cushioned polyamide for extra support, lets your feet breathe.

Shipping

Order Handling: Your order is processed and handed off to our shipping carrier within 1-2 business days.
Shipping Speeds:
- Standard Shipping (Contiguous US): 3-6 business days.
- To Canada & Mexico: Please allow an additional 1-3 business days for cross-border shipping.
Shipping Rates:
- Get free shipping on any order $60 and up!
- For all other orders, a flat rate shipping charge of $10 applies.

Returns

30-Day Free Returns: We have a 30-day, no-questions-asked free return policy from the day your order is delivered.
Eligibility for a Refund: Returned merchandise must be in new, unworn condition. Items marked as ‘Final Sale’ are not eligible for a return.
Hassle-Free Refunds: Your refund will be credited to your original form of payment within 1-2 business days after we receive and inspect the return.