UnderFlex Compression Boxer Briefs for Men: UPF 50 built into fabric.

YogaRat's all-new UnderFlex Boxer Briefs combine flexibility with compression, so you're supported whether at work, sport, or play. Polyester/spandex construction is comfortable and "made to move" as you move, while being highly breathable with excellent wicking properties, so you stay cool and dry. You can wear your UnderFlex Boxer Briefs on land or in the water, as they're built to work in dry or wet environments. Wear them at the gym, the yoga studio, or for a night on the town. UPF 50 sun protection is built into the fabric, so they're a great choice for under your trunks at the beach, or under your wetsuit. And once the top layers fly away, your significant other will love the way UnderFlex looks on you as much as you do. Likewise, YogaRat doesn't believe its customers need to be walking advertisements after the clothes come off, so UnderFlex sports no external logos, on the waistband or elsewhere. We believe in B.Y.O.B. (Be Your Own Brand). YogaRat's UnderFlex Boxer Briefs offer the perfect balance of support and comfort, at a great price. For those who want a somewhat looser fit, YogaRat recommends ordering a size up.