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Base Layer fabric is 50% lighter than the standard cotton TShirt. 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 antibacterial treatments
Have a functionality, fit, or otherwise product-specific question about the MSR Base Layer Long Sleeve? Ask it here!
If you have a customer service or shipping question, please direct it to our Customer Service department.
Coinneach F: I have the short sleeve shirt and like it a lot, even for everyday wear. However, it leaves my forearms to roast in my mesh jacket. The long sleeve keeps arm-roasting to a minimum.Jun 30, 2015
Rubens d: Good reviews and good price.May 28, 2014
Robert F: Got the long pants which worked wellNov 1, 2013
Robert C asked:Would I order the same size as my T-shirts?May 10, 2014
jacob d:I would probably go with the medium. I'm 5'10', 185 athletic build and the Large fits me great. I would be afraid the small might be a little too tight. I wear a Large Icon Contra Jacket and typically wear a Medium or a Large long sleeve T-shirt.Oct 6, 2014