REI Heavyweight MTS Long-Sleeve Crew, Men's

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« Item   Item » REI Heavyweight MTS Long-Sleeve Crew, Men's All seams are flatlock stitched to avoid abrasion and bulk. Close-fitting cut increases top's thermal efficiency. Droptail hem stays tucked in and offers extra coverage in back. Fabric provides UPF 50+ sun protection, shielding skin from harmful ultraviolet rays. Our heavyweight MTS® underwear is an excellent first layer for mountaineering and other high-energy, cold-weather activities. Quick-drying and moisture-wicking, ultra-soft MTS microfleece draws perspiration away from skin to keep you warm, dry and comfortable. More info + price