The foundation of any winter wardrobe, a base layer keeps your core warm by wicking moisture away from your skin. Thanks to new state-of-the art seamless knitting technology and a moisture-wicking blend of polypropylene, nylon, and lycra, the Castelli Iride Seamless Long Sleeve Base Layer is the company’s softest and most comfortable base layer to date.
Polypropylene is a popular choice for performance base layers as the fabric’s fibers quickly transport moisture away from your skin. Once the moisture has reached this point, the Iride’s nylon layer takes over, transferring the moisture outward to the surface of the garment to evaporate there, keeping you warm and dry. The Iride is also cut long at the waist to keep the base layer from riding up and out of your bibs.
The Castelli Iride Seamless Long Sleeve Base Layer is available in Black and comes in three sizes -- Small/Medium, Large/X-Large, and XX-Large. Like most Castelli clothing, the Iride base layer is designed to be form-fitting as the technical fabrics used to construct the garment work best when in close contact with your body. Be sure to check the sizing chart to ensure proper fit.