Smartwool Merino 150 Baselayer Long Sleeve - Women's: An all-season favorite, wear the Merino 150 Long Sleeve as a base layer in fall or as a single layer when summer backpacking calls. Featuring Core Spun technology, we've wrapped Merino around a nylon core for added durability while still keeping the temperature regulation and moisture management benefits of ultra-soft Merino next to skin. Raglan sleeves remove shoulder seams for comfort under a pack and smooth merrow stitching wraps from side to front for a flattering look. Features: Slim Fit Raglan sleeve design removes shoulder seams Side seams wrap to front for body-enhancing fit Stretch merrow stitching for comfort and a feminine aesthetic Knit in Vietnam: 87% Merino Wool, 13% Nylon Core Garment Weight: 133 g = 4.7 oz Benefits: Merino 150: Our lightest, most versatile layer with enhanced durability and ultimate breathability. Quick drying, it works as a solo layer in warm weather or as a base layer in cool weather Core Spun: Merino fibers wrapped around a nylon core for added durability while still keeping the comfort of Merino next to skin Care: Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Cool Iron As Needed. Dry Clean.