The Theos Merino LS uses body mapping technology to optimize next to skin layering. By using 150 grams of highly breathable perforated 100% Merino Wool where you need it most in the upper back, armpits, and back of arms. 200 grams in the lower back and lower arms, and 250 grams through the body, creating a naturally antimicrobial and moisture-wicking envelope of performance.
