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Description
Fast, First. Sock, Always.
The Castelli Aero Race Pro 20 Sock is their version of an aero sock that doesn't compromise on the things that make a great sock. Working with expert Italian knitters and state-of-the-art machinery, they created a structure that combines smooth and textured zones to control airflow and reduce drag — without sacrificing comfort or fit. The result is a sock that stays up, feels great, and delivers aero performance equal to ribbed Lycra cuffs — with the bonus of true everyday wearability.
Features:
- Traditional sock comfort with raised aero ribs.
- Developed to provide everyday aerodynamic gains.
- Durable and breathable construction.
- 90% polyamide / 10% elastane mix for optimal comfort and fit.
- 20 cm cuff.
B-Stock - This product has one or more B-Stock units available. These units can be purchased at a discount (see option select). B-Stock units were returned from other customers and may have missing or damaged packaging materials. These units are otherwise as new. The full manufacturer warranty applies. Click Here for more information.
Size Chart
| S/M | L/XL | XXL | ||||
| Shoe Size | 35-39 | 40-43 | 44-47 |
Specifications
Cuff Height: Crew | |
Fabric Type: Synthetic | |
White - S/M | Mfg PartNum: R4526031001-2 |
White - L/XL | Mfg PartNum: R4526031001-4 |
White - 2X-Large | Mfg PartNum: R4526031001-6 |
Black - S/M | Mfg PartNum: R4526031010-2 |
Black - L/XL | Mfg PartNum: R4526031010-4 |
Black - 2X-Large | Mfg PartNum: R4526031010-6 |
Belgian Blue - S/M | Mfg PartNum: R4526031424-2 |
Belgian Blue - L/XL | Mfg PartNum: R4526031424-4 |
Belgian Blue - 2X-Large | Mfg PartNum: R4526031424-6 |
Reviews
I've heard/read that aero socks are the best bang-for-your-buck aero upgrade you can make, and these are among the more affordable options (among big brands), so decided to give them a try. Have worn them for a couple races (short TT and a duathlon), and they stayed in place and were comfortable. If they saved me watts, it wasn't a lot, but every little bit helps, right? The main positive is that I didn't notice them at all during the races, which is a good thing for clothing.
Compression is light, so if you need firmer support you may want to look elsewhere. The foot portion is also pretty thin, which is great for warmer weather but it makes me worry about long-term durability, so I'm going to limit how often I use these.
These are a bit taller than average and very similar in build to the Silca Aero Socks. Castelli's aero grooves are smoother and hard to notice. Only concern is that the fabric around toes started to pill after couple of uses; stil a bit more resistant that other models on their range. Would be a better value option if they fix this. Would recommend nevertheless; nice to show up on a enthusiastic-pace coffee ride with these taller, mint-looking, single-digit-watt-saving socks.
