Shave precious seconds with Shimano's fastest race sock. The S-PHYRE Flash pairs thin aerodynamic ribbing with a secure, foot-hugging fit, so your feet stay planted and cool through every hard effort.

Highlights

• Thin knitted ribs and a mid-calf length cut drag for a real aero gain
• Enhanced arch and heel support keep your feet locked in for stable pedalling
• Breathable mesh instep vents heat building up inside the shoe
• Reinforced ribbed heel resists wear for long-lasting durability
• Thin sole knit gives a closer, more direct connection to the shoe
• Knitted with 72% recycled polyester yarn

Built for speed

The flagship S-PHYRE race kit is about marginal gains, and these socks carry that through. Narrow, low-profile ribs and the taller mid-calf cuff smooth airflow over the ankle, while the slim sole knit keeps you connected to the shoe and pedal for confident power transfer.

Comfort and support

A structured arch and heel band holds the sock in place so it does not slip or bunch under load, and the breathable mesh panel across the instep helps dump heat on long, hot days. The reinforced ribbed heel stands up to repeated pull-on and the rub of stiff race shoes.

Compatibility & fit

This listing is the black colourway in size S/M, fitting EU shoe sizes 36-40. Mid-calf height. Designed to be worn with road and performance cycling shoes. If you are between sizes or prefer a looser cuff, consider sizing up.