Description of Mountain Hardwear Lightweight Power Stretch Boxers Exceptional moisture management, warmth and durable stretch. Smooth outer weave slides easily under layers and brushed interior feels soft against the skin. Wear as a midweight baselayer, or alone on cool days. Features: Body - Lightweight Polartec® Power Stretch® Brushed elastic at waist band All seams stay clear of abrasion areas Warm, wicking and fast drying Soft and lightweight Flat lock seams in contrast thread color