The Castelli Iride Seamless Long Sleeve Base Layer is Castelli's softest and most comfy base layer yet. The seamless fabric stretches with your movement and has an incredibly soft, touchable hand. Textured polypropylene fibers transport sweat droplets to the outside of the material, where it evaporates into the air, keeping you dry.

• Polypropylene/Nylon/Lycra blend
• Seamless construction
• Tall collar
• Recommended for 50 - 65 degrees