Assos RSR Socks S11

Assos RSR Socks S11

The Assos RSR Socks S11 are racing socks for maximum intensity, developed with feedback from the WorldTour and optimized for long distances in hot conditions. They combine medical compression (25 mmHg, Class II) with an ultra-lightweight, air-cooling construction that supports circulation and minimizes friction. The 21 cm high cuff ensures a stable fit, while the clean aesthetic seamlessly integrates into any racing outfit. Two variants are available: blackSeries and whiteSeries – both with identical performance but different colorways.

• InfraRed yarns with high elastomer content for consistent compression and stable hold
• Ultra-lightweight, air-cooling construction for hot summer days
• 240-needle seamless construction without disruptive seams
• 21 cm high cuff for race-oriented fit
• Material blend: 55% Polyester, 36% Polypropylene, 9% Elastane
• Sizes: 0, I, II; two color variants blackSeries and whiteSeries

Technical Details and Features

At the core of the RSR Socks S11 is a smooth, highly elastic InfraRed yarn that, combined with Lycra, creates a firm, supportive wrap around foot, ankle, and lower leg. The targeted compression of 25 mmHg (Class II) is designed for racing loads and has been further refined with professional input. Thanks to the 240-needle seamless construction, hard seams are eliminated, reducing pressure points and achieving a friction-free fit. The 21 cm high cuff additionally stabilizes the sock and ensures a uniform look within the Assos Racing Series layering systems.

Applications and Benefits

These socks excel particularly in high-intensity racing, long training blocks, and hot conditions commonly encountered during Swiss summers. The airy knit structure promotes ventilation, while the compression supports muscular stability – ideal for road bike use on flat courses, mountain stages, or fast group rides. Due to the low-seam construction, the RSR Socks S11 are also suitable for riders who are sensitive to friction. Not to be confused with the RSR Speed Socks S11, which feature an aerodynamic shaft at 18 cm; the RSR Socks S11 described here focus on compression and cooling.

Care, Fit and Variants

The RSR Socks S11 deliberately fit tight and feel compact – this is part of the performance-oriented design and contributes to stability in the shoe. For best performance, we recommend washing the socks at low temperature after your ride and drying them away from direct sunlight to maintain elasticity and compression long-term. Choose between the blackSeries and whiteSeries variants, depending on preference and combination with your kit; the technical properties remain identical. Sizes 0, I, II cover the standard range for cycling socks and follow the Assos sizing logic within the Racing Series.