Our most versatile synthetic baselayer keeps you dry and warm in cool to cold conditions. Stretchy, double-weave fabric wicks extremely well. Durable smooth jersey face slides easily beneath layers. Fabric is brushed for warmth, softness and compressibility; provides excellent insulation and breathability. Zip-neck for easy climate control is backed by kissing welts for low-bulk comfort next-to-skin. Raglan sleeves and underarm panels placed strategically to provide full range of motion and comfort under layers. Straight hem; cut long enough to tuck in. Machine-wash cold, tumble dry at low temperature. Solids: 5.4-oz Polartec® Power Dry® 100% polyester (65% recycled) double-knit. Heathers: 5.4-oz Polartec Power Dry 100% polyester (51% recycled) double-knit. Both have Gladiodor® odor control for the garment. 218 g (7.7 oz) Made in Costa Rica.