MSR Base Layer Long Sleeve Undershirt has a base layer fabric that is 50% lighter than the standard cotton T-Shirt. After 60 minutes of exercise the Base Layer fabric releases 80% of its moisture after 30 minutes of rest, cotton releases only 40% of its moisture after 30 minutes of rest. Made with compression garments that will hold your muscles in place longer and reduce body fatigue. Less chance for pulled and sore muscle tissue. Two different layers of fabric: Inner layer contains fibers that will wick the moisture off the skin quicker, creating a cooler inner climate. Once the moisture is separated from your skin the outer layer will evaporate the moisture evenly and fast. Fabric is spun with wicking and anti-bacterial treatments.
Specifications and Options
||Small, Medium, Large, X-Large, XX-Large