Offering excellent thermal insulation, the Peter Storm Men's Thermal Long Sleeve Crew Base Layer Top has a close fit and a stretch design making it great for cold weather activities like skiing and trail running.Features Thermal insulation - Keeps you warm and snug when winter bites.Close fit and stretch design - Provides extra insulation.Long sleeves - Offers excellent coverage.Streamlined and warm long sleeve thermal crew baselayer from Peter StormPolyester fabric body - this layer has a brushed reverse which provides lightweight warmth and lasting next-to-skin comfort.Versatile design - wear alone or as part of an effective layering system.Recommended activity - hiking / walking / running