REI Lightweight MTS Bottoms - Men's

These lightweight underwear bottoms are an excellent performance insulation layer. Quick-drying polyester fabric wicks moisture away from your skin. Loose fit features two-way comfort stretch. Flatseam construction is soft and non-chafing next to skin. REI® logo elastic waist is soft against skin. Finished with cross-over fly and comfortable cuffs. Fabric provides UPF 50+ sun protection, shielding skin from harmful ultraviolet rays.