An all-season favorite, the Classic All-Season Merino Base Layer Long Sleeve can be sported as a base layer in the fall or summer when it&';s time to go backpacking. This base layer features Core Spun technologya; "which features Merino wrapped around a nylon core for added durability while still keeping the comfort of ultra-soft, responsibly sourced Merino next to skin. Our Raglan sleeves eliminate shoulder seams for perfect comfort under a pack, and smooth merrow stitching wraps from side to front to keep you looking as good as you feel. Features a; A Slim Fit a; A Our lightest weight Merino jersey fabric uses a nylon core to increase durability while still keeping 100% Merino wool next to skin a; A Raglan sleeve design eliminates need for shoulder seams a; A Side seams wrap onto front for enhanced fit a; A Stretch merrow stitching designed to elevate comfort, range of motion, and fit a; A Indigo Blue colorway features plant-based-dye technique a; A Knit in Vietnam: 87% Merino Wool, 13% Nylon Core a; A Style: SW015255 Care a; A Machine Wash Warm Gentle Cycle. a; A Do Not Iron Decorations. a; A Do Not Bleach a; A Tumble Dry Low a; A Cool Iron As Needed a; A Do Not Dry Clean a; A Wash With Like Colors