Men's Base Layer Tops

Setting the standard for all others to follow, the 200 Oasis Long Sleeve Crew is icebreaker's best-selling base layer—a versatile active top for year-round layering and everyday comfort. Read more

Built for high-output activity. Read more

A warm and comfortable merino wool base layer for the coldest months of the year, the Merino 260 Oasis Long Sleeve Half Zip is a go-to piece for winter layering—ideal for skiing, snowshoeing and other cold-weather pursuits. Read more

The benchmark against which all others are judged, the Merino 200 Oasis Long Sleeve Half Zip features our most versatile merino wool jersey fabric for year-round layering performance across any activity. Read more

Free of plastic microfibres and petrochemical-based synthetics, this product is made with 100% pure merino fibres that were hand-picked for strength and softness to create a luxurious fabric that naturally breathes and resists odours. Read more

A warm and comfortable foundation for cold-weather layering from the ski hill to the snowshoe trail, the 260 Oasis Long Sleeve Crew features soft and breathable 100% merino wool jersey fabric. Read more

The Devold Breeze shirt is an ultra-light garment crafted from the finest and longest merino wool fibers. With 100% premium merino wool, handpicked for its quality, it offers exceptional softness and breathability, making it ideal for year-round wear. Read more

Warm, soft and insulating base layer, with a flattering fit, Read more

The Alpine Onset Merino 150 Base Layers feature a soft, non-mulesed merino wool blend and UPF 30 sun protection for stretchy, moisture-wicking, breathable warmth that's naturally odor-resistant for extended, multi-day wear between washings. Read more

The Devold Expedition Shirt offers exceptional insulation and has been used on several polar expeditions. Read more

Devold Duo Active shirt combines a fine, organic merino wool on the outside and ThermoLite on the inside, to provide best possible comfort during the cold days of winter. Read more

Devold Duo Active zip neck shirt combines a fine, organic merino wool on the outside and ThermoLite on the inside, to provide best possible comfort during the cold days of winter. Read more

The Devold Lauparen t-shirt is part of a hiking-ready collection of rib-knitted garments made from soft and lightweight merino wool. Read more

This midweight KOMBI men's base layer crew neck top delivers comfort and warmth. Read more

The Alpine Onset 150 Base Layers are a lightweight insulator, featuring soft merino wool blended with recycled polyester for superior moisture wicking and durability and are the foundation for an elite performance outerwear kit. Read more

This new lightweight KOMBI men's base layer zip top delivers comfort and warmth. Made of ultra-soft Tencel and MerinoMIX ACTIVE ethically sourced Merino wool, our men’s base layer provides silky-soft comfort for when you’re truly active. Read more