Whether you're paddling through dawn mist or blazing across open water under the midday sun, the NRS Silkweight Long-Sleeve Shirt keeps you cool, protected, and comfortable all day long. Built with innovative brrr°® Pro fabric technology, this lightweight sun shirt actively wicks moisture while delivering instant cooling comfort that makes those scorching summer paddles actually enjoyable. The UPF 50+ rating blocks over 98% of harmful UV rays, while antimicrobial treatment keeps you fresh during multi-day river trips or extended time on the water. Designed specifically for boaters, the regular fit works perfectly under your PFD without bunching, and thoughtful details like thumbholes and strategic seam placement ensure you stay protected and chafe-free from put-in to take-out. At just 8.5 oz, it's the versatile water sports essential that works as hard as you do, whether worn alone on hot days or as a technical base layer when conditions change.