Spring skiing or summer camping? The year-round Merino 150 base layer long sleeve is game for either thanks to the body temp regulating and no-stink properties of Merino. Featuring Core Spun technology, Merino is wrapped around a nylon core for added durability while still keeping the comfort of ultra-soft Merino next to skin. Added smooth flatlock seams help to minimise chafing and offset shoulder and side seams lie smoothly beneath pack straps. Merino 150This breathable, soft, lightweight fabric offers next-to-skin comfort, moves sweat away from the body, and acts as a versatile performance layer for warmer conditions.Core SpunMerino fibres wrapped around a nylon core for added durability while still keeping the comfort of Merino next to skin Slim Fit Raglan sleeve design eliminates need for shoulder seams Flatlock seam construction designed to minimize chafing Knit in Vietnam: 87% Merino Wool, 13% Nylon Core Garment Weight: 170 g = 6 oz