Hiking, trekking, and fly fishing are all great times to be wearing the Boys's Royal Robbins Release Long Sleeve Shirt. Offering the Dri X-Treme mesh lined vented back yoke for excellent venting and moisture control when temperatures are on the rise. The wrinkle-resistant, light weight performance fabric is durable and attractive making the Royal Robbins Release Long Sleeve Shirt the Great shirt for every outdoor adventure.