The butter rib long sleeve is a super-soft Rib-knit shirt perfect for mountain huts, campfires or curling up on the couch after a long day on the trail. The butter rib long sleeve is all about relaxing in comfort. Made with a cozy 100% Merino wool rib fabric, this shirt features a henley-style button placket, raglan back shoulder seams, and corespun jersey fabric cuffs for added durability that maintains next-to-skin softness. Best worn with our butter rib hot pants for maximum coziness.