Constructed from nylon and polypropylene stretch fabric, these men's boxers create a snug fit that moves with you throughout the day without feeling too constrictive. The use of Dryarn® material offers breathability, heat regulation, and quick-drying features. That means you feel cool and comfortable on hot summer hikes and on winter trips through the backcountry. The fabric is naturally lightweight without compromising on breathability and insulation, so it feels like a second skin. Whether you love to trek up mountains, ski down groomers, or do a bit of everything, our Seamless Light 2 Boxer shorts offer support and comfort all-day-long.