100% MERINO WOOL: LAPASA's long john thermal underwear shirts are made from 100% Merino Wool, providing the ultimate warmth and comfort for cold weather. The Lightweight and Midweight fabric ensures superior insulation. Also, The merino fibers offer a soft, itch-free experience. It's an ideal base layer for winter activities like hunting, camping, or as cozy pajamas.

OPTIMAL INSULATION AND BREATHABILITY: Enjoy the perfect balance of warmth and breathability with LAPASA's Merino wool thermal underwear top. The mid-thickness design provides excellent insulation without bulkiness, offering a lightweight and comfortable feel. The breathable fabric wicks away moisture, keeping you dry and cozy during outdoor adventures or everyday wear.

UNRESTRICTED MOVEMENT AND VERSATILITY: Our merino thermal shirts moves with your body, thanks to the durable 4-way stretch material, ensuring freedom of movement during various activities. It's perfect for hiking, skiing, or any cold-weather pursuits. The snug fit and seamless construction prevent chafing and enhance comfort.

NATURAL CONTROL AND COOLING + WARM EFFECT: LAPASA's Merino wool base layers keep you fresh throughout the day. The natural cooling properties of Merino wool make it suitable for any season or climate, allowing you to stay comfortable and cool even in warmer temperatures.

LIGHTWEIGHT AND EASY CARE: Our lightweight Merino wool thermal long john shirt offers excellent heat retention while being easy to care for. It's machine washable and quick-drying, ensuring hassle-free maintenance. Whether you're heading out for an adventure or lounging at home, this thermal set provides exceptional comfort and performance.