Merino 250 Blayer Baselayer Half Zip

Smartwool's Merino 250 Blayer is built for serious cold-weather layering. This half-zip baselayer delivers warmth without bulk, making it ideal for active pursuits in alpine conditions or as a mid-layer under a shell. Merino wool regulates temperature naturally—it keeps you warm when it's cold and breathes when you're working hard. The fabric resists odor, so you can wear it longer between washes. The half-zip lets you vent heat on the move, and the fitted cut works well under jackets without adding volume. Key features: - 100% merino wool construction - Half-zip design for easy temperature control - Fitted cut for layering efficiency - Naturally odor-resistant - Durable enough for backcountry use This is a workhorse baselayer for anyone who spends time in the mountains or on the trail.