The Castelli Pro Seamless 2 Arm Warmer in Black (L/XL) is a performance-oriented layering accessory designed to provide versatile coverage and comfort in variable conditions. Built with a seamless knit construction and a focus on fit, these arm warmers offer reliable insulation that helps extend the riding season without restricting movement or adding bulk. They pair easily with short-sleeve and long-sleeve jerseys alike, making them a practical choice for cool starts, changing weather, or extended descents.
Seamless construction is at the core of the Pro Seamless 2 design, eliminating bulky seams that can cause irritation or pressure points under jersey sleeves. The result is a smooth, second-skin feel that moves naturally with the arm throughout the pedal stroke. This construction also helps reduce chafing and improves overall comfort on rides where repeated flexing occurs.
The fabric blend offers a balance of warmth and breathability. It traps a light layer of air near the skin to provide insulation while still allowing moisture vapor to escape, helping regulate temperature during efforts of varying intensity. Whether climbing in cool morning air or descending after a hard effort, the material adapts to changing conditions to help keep the arms comfortable without overheating.... Read More
Fit and stay-put performance are key attributes of these arm warmers. Designed with graduated elasticity, the openings at the biceps and wrists provide secure yet comfortable grip, preventing the warmers from sliding or bunching under movement. This ensures a consistent fit throughout rides, reducing the need for readjustment and keeping aerodynamic drag minimal.
The black colorway gives these warmers a clean, understated look that pairs well with a wide range of kit colors and styles. The L/XL size is designed for riders who need a slightly larger fit, accommodating a broader range of arm circumferences while maintaining the same performance characteristics expected from Castelli’s premium accessories.
