Base layer undershirt

Soft, breathable long‑sleeve base layer crafted from 6.0 oz merino wool. Features a round neck and moisture‑wicking properties for warmth and comfort during outdoor activities or everyday wear.

Lightweight, breathable long‑sleeve base layer for women in white, size XS‑S. Features moisture‑wicking fabric, seamless construction, and a snug fit for active or everyday wear.

Children's thermal base layer, long sleeve, in pink by Kilpi. Designed for boys 12-13 years old. Lightweight and breathable, perfect for layering under clothes in colder weather.

A lightweight, breathable long‑sleeve base layer for women made from 100% merino wool. It offers moisture management, temperature regulation, and a snug fit in black, available in size XS.

A lightweight, breathable long‑sleeve base layer in crisp white, designed for men in sizes 2XL and 3XL. It offers moisture‑wicking performance, quick‑dry comfort, and a slim fit for layering or solo wear.

Soft, breathable merino wool base layer for women: long‑sleeve, round neck, dual‑tone black and red, size small, ideal for layering in cold or hot conditions.

Soft merino wool long‑sleeve with turtle neck, breathable, moisture‑wicking, perfect for layering or solo wear, black XS crafted in Italy, it offers a sleek fit and natural odor control.

Soft, breathable long‑sleeve base layer that locks heat while wicking moisture away, keeping you warm and dry on cold days or intense workouts. The lightweight fabric feels like a second skin, with a snug crew neck for easy layering.

A lightweight black short‑sleeve base layer for women, crafted from breathable, moisture‑wicking fabric that keeps you dry and comfortable during training or everyday wear.

Soft, breathable white base layer with long sleeves, designed for women in sizes M to L. It wicks moisture, dries quickly, stays lightweight and snug, making it perfect for layering during active pursuits.

A lightweight, moisture‑wicking short‑sleeve base layer for women in XL–2XL. Made from breathable carbon fabric, it offers compression and smooth fit for optimal performance during workouts.

Soft, breathable long‑sleeve base layer for men in white. Designed with moisture‑wicking fabric and a snug fit to keep you dry and comfortable during workouts or everyday wear. Ideal for layering under jackets or shirts.

Soft, breathable merino wool long‑sleeve undershirt with a subtle turtle neck design, perfect for layering or wearing alone. Features moisture‑wicking, temperature regulation and lightweight comfort in black.

Comfortable, breathable short‑sleeve base layer for women in white, sized M–L. Designed with technical fabric to wick moisture and keep you dry during workouts or everyday wear. Lightweight yet durable, ideal for layering.

Lightweight, breathable women's base layer in white, designed for active wear. Features moisture‑wicking fabric, seamless construction, and a relaxed fit that flatters from XL to 2XL. Ideal for layering or standalone use.

This lightweight black base layer for women blends breathable, moisture‑wicking fabric with a relaxed fit and subtle ribbed cuffs, ideal for layering during outdoor adventures or everyday comfort.

Experience ultimate comfort and warmth with the Lenz 6.0 Merino Long Sleeve Women's Base Layer T-shirt in black. Crafted from high-quality merino wool, this lightweight and breathable top offers excellent moisture-wicking properties, keeping you dry and cozy during outdoor activities. Its fitted design ensures a flattering silhouette, while the long sleeves provide added coverage for chilly days. Perfect for layering or wearing on its own, this versatile base layer is an essential addition to an

The Lenz 1.0 Women's Long Sleeve Functional Shirt in white offers a perfect blend of comfort and performance, designed for active lifestyles. Its moisture-wicking fabric ensures you stay dry, while the lightweight construction allows for unrestricted movement, making it ideal for layering or solo wear during workouts or outdoor adventures.

A vibrant golden yellow half‑zip base layer crafted from midweight merino wool, offering breathable warmth and moisture control for active outdoor pursuits while keeping you comfortable in XXL size.

Experience ultimate comfort and warmth with the Lenz 6.0 Merino Turtle Neck Long Sleeve Women's Base Layer in black. Crafted from premium merino wool, this base layer offers excellent moisture-wicking properties and breathability, making it perfect for layering during outdoor activities or cozying up indoors. The turtle neck design provides added protection against the cold, while the long sleeves ensure full coverage. Its soft, lightweight fabric feels gentle against the skin, making it an esse

Experience ultimate comfort and performance with the Lenz 1.0 Long Sleeve Functional Shirt in white. Designed for active individuals, this shirt features moisture-wicking fabric that keeps you dry and comfortable during any activity. Its lightweight construction ensures freedom of movement, while the long sleeves provide added warmth and protection. Perfect for layering or wearing alone, this versatile piece is ideal for outdoor adventures or casual wear.

Discover the warmth and comfort of the Lenz Merino 6.0 Long Sleeve Base Layer, crafted from premium merino wool. This sleek black turtle neck undershirt offers moisture-wicking, odor-resistant properties for women’s active lifestyles.

Soft, breathable merino wool long‑sleeve base layer that keeps you warm without bulk. The sleek black design features a relaxed fit and moisture‑wicking technology for active or everyday wear. Its fine texture feels gentle against skin while providing natural odor control and temperature regulation. Ideal as a versatile underlayer for hiking, travel or casual layering.

Soft and breathable, this black merino long‑sleeve T‑shirt offers a sleek round neck fit with a subtle V cut that flatters the silhouette while keeping you cool. The lightweight fabric drapes smoothly over the body, providing gentle warmth without bulk, making it ideal for layering or wearing alone in mild weather. Its fine knit texture feels silky against skin and resists pilling, ensuring lasting comfort through everyday wear.

Soft, breathable black long‑sleeve base layer for women in XL/2XL, featuring moisture‑wicking fabric, seamless construction, and a relaxed fit that moves with you while keeping heat locked in.

A lightweight, breathable long‑sleeve crew neck made from 6.0% merino wool that regulates temperature and wicks moisture while remaining odor‑resistant, perfect for layering or solo wear in cooler climates.

Soft, breathable merino wool keeps you warm without bulk. The crew neck and long sleeves offer a relaxed fit, while moisture‑wicking fabric dries quickly for active use. Ideal as a base layer or everyday shirt.

Soft, breathable black long‑sleeve base layer designed for women, featuring a midweight, moisture‑wicking fabric that retains heat while staying cool. Seamless construction and flat‑lock seams reduce chafing, with adjustable cuffs for a snug fit during active or everyday use.

Fresh airflow meets cozy warmth in this Merino 6.0 turtleneck thermal tee for men. Black and red blend, long sleeves, size S, ultra soft merino, regulates temperature, moisture wicking, next to skin comfort.