Feel good and keep moving in Smartwool Men's Intraknit All-Season Merino Base Layer Crew. Built to preform, this top combines the natural performance of Merino wool with the cooling comfort of TENCEL Lyocell that helps manage moisture, regulate temperature, and control odor no matter the trail. Innovative Intraknit technology integrates targeted insulation, ventilation, and stretch for a comfortable fit that moves with you, while minimal seams help reduce chafing during long days outside. The slim, body-hugging fit layers easily under your favorite midlayer or shell, making it a versatile choice for trail running, hiking, ski touring, and year-round mountain adventures. Go further and stay out there longer with Smartwool's Intraknit All-Season Merino Base Layer Crew for men.
Merino wool and TENCEL Lyocell blend for moisture management and odor resistance
Lightweight, breathable fabric for comfort during high-output activities
Minimal seams to help reduce chafing and improve next-to-skin comfort
Slim fit that follows the body's contours for easy layering
Winter 2026/27 product
Smartwool Intraknit All-Season Merino Base Layer Crew - Men's
