Aero 1/2 Zip Men's Men's Fits 8/9-speed cassettes

Fits 8/9-speed cassettes

Defined Color Black

People have been gushing about the ISM Attack since its introduction in 2013

R2 Carbon fiber sole

with a stiffness index rating of 10

Aero 1/2 Zip Men's Men's Fits 8/9-speed cassettesSoft and smooth coverage that can be worn on its own or as an extra layer, the Aero 1 2 Zip has a lightweight breathable mesh back and is easily adjusts at the neck and sleeves so you can stay comfortable as you heat up or cool down. 1 2 zip long sleeve 2. Stand collar 3. Hybrid raglan sleeve with under arm gusset for movement 4. Moisture wicking jersey on front and arms 5. Lightweight breathable mesh back panel 6. Thumbholes at sleeve cuffs for extra