Alpine Onset Merino 150 Crew Base Layer Top – Men's

For cool-weather hikes, early-morning hunts, and ski trips alike, the Alpine Onset Merino 150 is our go-to base layer for anyone who runs warm. The 53% merino blend wicks sweat and fights odor over long days, while flat seams keep chafing down under a pack or extra layers.

• 150 gsm merino blend delivers breathable warmth without bulk, so it works for cold mornings and active climbs
• 53% non-mulesed merino, 42% polyester, 5% Lycra: soft next to skin, quick-drying, and stretchy
• Natural odor resistance lets you wear it multiple days on the trail or at deer camp
• Raglan sleeves and flat seams cut chafing under pack straps, harnesses, and extra layers
• UPF 30 adds sun coverage on exposed ridgelines and open-country hikes