Icebreaker | Base Layers

About

The world's first natural layering system. Icebreaker's merino base layers are naturally breathable, moisture-wicking, body temperature regulating and odour-resistant. Icebreaker have options for all occasions whether it be climbing summits in the depths of winter or under everyday clothing for daily comfort. Click here to read more... WHAT IS A THERMAL BASE LAYER? A thermal base layer is an essential piece of clothing for cold-weather activities, designed to keep you warm by managing moisture and insulating your body. Worn as the first layer against your skin, thermal base layers come in different weights and densities to cater to various activity levels and temperature needs. Lightweight options are ideal for high-intensity activities where breathability is a priority, while midweight and heavyweight layers provide additional warmth for lower-intensity activities or colder conditions. Choosing the right weight ensures that you stay comfortable without overheating or feeling restricted. HOW DO THERMAL BASE LAYERS WORK? Thermal base layers work by managing moisture and regulating body temperature, helping you stay warm, dry, and comfortable. The fabric’s unique properties play a vital role in this: Hydrophilic Properties: A good thermal base layer will be hydrophilic, meaning it’s highly absorbent. It quickly pulls sweat away from your skin, helping you stay dry and preventing the buildup of moisture, which can make you feel cold. Hydrophobic Properties: Once moisture is absorbed, a quality base layer fabric will also be hydrophobic, meaning it dries quickly. This prevents wet fabric from clinging to your skin and making you cold. By keeping you both dry and warm, a thermal base layer effectively acts as a buffer between you and the cold weather, ensuring comfort during various outdoor activities. These properties work together to trap a layer of warm air close to your skin while wicking moisture away, so you can stay warm without feeling clammy. ARE MERINO THERMAL