Pulling on an extra layer when the mercury's rising might seem counterintuitive, but a proper base layer, like the Seamless Light Base Layer, can make all the difference. Wearing a lightweight base layer helps wick sweat away from the body, generating an even greater cooling effect. To top it off, features like soft-puff stitching eliminate abrasion-inducing seams, while our Slim Fit conforms to your body. - Synthetic yarns have a soft feel and move moisture away from the skin while providing the perfect amount of compression. - Targeted stretch and support areas move with your body while you're riding. - Seamless construction provides the best fit and eliminates chafing. - Fabric Content: 84% Polypropylene, 8% Polyamide, 8% Polyester