On Merino Ultra Sock - Black
On's first dedicated trail running sock with a high-tech ergonomic construction – for max comfort and protection.
Features
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.
Key features
- 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
Material
62% wool, 38% polyester
| Product Name: | On Merino Ultra Sock - Black |
| Manufacturer: | On Running |
| Item Code: | ONR702293 |
| Material: | 62% wool, 38% polyester |
| compression: | no |
| activity: | Trailrunning |
| gender: | unisex |
| textile fabric: | Synthetics, Recycled Fabrics, Wool |
| Season: | All Season |
| socks length: | medium |
| socks version: | padded |
| Model year: | 2026 |
| Collection: | Spring/Summer |
| Color: | Black |
| weight: | 71g |
| Weight Source: | Manufacturer |
| GTINs: | 7615537126005, 7615537126012, 7615537126029, 7615537126036, 7615537126043 |
Manufacturer: On Running
In the following tables you will find information on the dress sizes of the manufacturer On Running.
Category: Shoes
Men
| Europe | 40 | 40.5 | 41 | 42 | 42.5 | 43 | 44 | 44.5 | 45 | 46 | 47 | 47.5 | 48 | 49 | 50 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| US | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13 | 14 | 15 |
| UK | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 11.5 | 12 | 12.5 | 13.5 | 14.5 |
Europe 40
Europe 40.5
Europe 41
Europe 42
Europe 42.5
Europe 43
Europe 44
Europe 44.5
Europe 45
Europe 46
Europe 47
Europe 47.5
Europe 48
Europe 49
Europe 50
Men - Socks
| International | S | M | L | XL | XXL |
|---|---|---|---|---|---|
| EU | 40 - 41 | 42 - 43 | 44 - 45 | 46 - 47 | 48 - 49 |
| UK | 6.5 - 7.5 | 8 - 9 | 9.5 - 10.5 | 11 - 11.5 | 12.5 - 13.5 |
| US | 7 - 8 | 8.5 - 9.5 | 10 - 11 | 11.5 - 12.5 | 13 - 14 |
International S
International M
International L
International XL
International XXL
Women
| Europe | 36 | 36.5 | 37 | 37.5 | 38 | 38.5 | 39 | 40 | 40.5 | 41 | 42 | 42.5 | 43 | 44 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| US | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 9.5 | 10 | 10.5 | 11 | 12 |
| UK | 3 | 3.5 | 4 | 4.5 | 5 | 5.5 | 6 | 6.5 | 7 | 7.5 | 8 | 8.5 | 9 | 10 |
Europe 36
Europe 36.5
Europe 37
Europe 37.5
Europe 38
Europe 38.5
Europe 39
Europe 40
Europe 40.5
Europe 41
Europe 42
Europe 42.5
Europe 43
Europe 44
Women - Socks
| International | XS | S | M | L |
|---|---|---|---|---|
| EU | 36 - 37 | 38 - 39 | 40 - 41 | 42 - 43 |
| UK | 3 - 4 | 5 - 6 | 6.5 - 7.5 | 8 - 9 |
| US | 5 - 6 | 7 - 8 | 8.5 - 9.5 | 10 - 11 |
International XS
International S
International M
International L
On Running
All products from On RunningPfingstweidstrasse 106
8005 Zürich
Switzerland
www.on-running.com
Bike24 GmbH
Breitscheidstr. 40
01237 Dresden
Germany
impressum@bike24.net
www.bike24.de
