Thermal Underwear
Underwear for clothes and winter sports
Underwear for clothes and winter sports is the starting point for your layering system when skiing, snowboarding or staying active in cold Irish weather. It keeps you dry, warm and comfortable, even when your heart rate goes up. In this category, you’ll find a carefully selected range of models designed for winter sports and outdoor adventures.
The purpose of functional underwear is to move moisture away from your skin and regulate your body temperature so you don’t get cold on the lift or overheat on the way down. That’s why the material, fit and thickness are much more important than colours or prints when choosing the right set.
Materials, fit and layering
The main decision is usually between wool, synthetic fibres or a mix. Merino wool naturally regulates temperature, resists odour and stays warm even when damp. Synthetic fibres like polyester and polyamide are lightweight, excellent at wicking moisture and quick to dry. Many modern sets combine the best of both materials.
Underwear for winter sports should fit close to the body without feeling restrictive. A snug fit improves moisture control and makes it easier to add extra layers, such as a mid-layer and a shell jacket. Also consider whether you want a thin all-round set for active movement or a slightly thicker one for extra warmth on colder days.
When choosing, look out for:
- Material: Pure merino wool for maximum comfort and odour resistance, or synthetic for faster drying and lighter weight.
- Thickness (g/m²): Lightweight fabrics for high activity and spring or autumn use, heavier weaves for frost and lower temperatures.
- Fit: Close-fitting and stretchy so the fabric follows your movements without bunching or causing friction.
- Seams and details: Flat seams, soft labels and wide waistbands reduce irritation during a full day of activity.
- Layering use: Consider whether the set will be worn mainly under ski clothing or also as a daily layer under your regular clothes.
- Care: Always check the washing instructions; wool needs a gentle detergent and a lower temperature than synthetic underwear.
With the right choices, your underwear will last longer, and you’ll get more enjoyment from both your ski holiday and your other winter activities. Choose the models that best suit your activity level and temperature preferences, and build your own comfortable layering system from there.