| Racesox Sock Sizes |
| Sock Size |
US Men's Shoe Size |
US Women's Shoe Size |
| S |
N/A |
4-7 |
| M |
6-9 |
7.5-10 |
| L |
9.5-12 |
10.5-13 |
| XL |
12.5-15 |
13+ | Sock Geek Says:
As with lots of sporting injuries, preventative maintenance is key, and that’s where the RX500 comes into play. Hot spots form when friction and moisture combine to irritate the skin, so this sock is big on friction reduction, breathability, moisture-wicking, and comfort.
A cushioned sole and a terry top boast Coolmax®, with its well known ability to transfer moisture and heat away from the skin, while Mohair fibers knit into the heel and toe minimize friction and help the blister-prone areas to stay dry, comfortable, and free from chafing. The middleweight nature of this sock also insulates from both heat and cold. If a propensity for hot spots holds you back, then let the RX500 be your first-aid field kit.
Here's the highlights:
- Mohair fibers in the heel and toe protect against hot spots and blisters
- TCK proDRI insulates and manages moisture
- High-splice design provides friction protection in problem areas
- Dynamic Heel/Toe Construction
- Double welt top for comfort and fit
- Ergonomic cushioning provides impact absorbency
- Arch compression reduces fatigue and aids circulation
- Smooth toe seam adds comfort
Racesox RX500 Sock Specs
Sock Fibers:
66% - Coolmax Polyester 12% - Nylon 10% - Mohair 6% - Merino Wool 4% - Elastic 2% - Lycra Spandex
Made in the USA |

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