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Women's Base Layers

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Read: Your Guide To The Layering System / Base Layer Guide

Stay comfortable on every adventure with women’s base layers. Our collection features high-performance tops and leggings from trusted brands like Helly Hansen, Under Armour, and Icebreaker, celebrated for their innovative materials, durable construction, and reliable warmth. Whether you’re hiking chilly trails, heading out for a mountain run, or braving the winter elements, our base layers are designed to help regulate your temperature, wick away moisture, and keep you dry from start to finish.

Choose from ultra-soft merino wool for natural warmth and odour resistance, or technical synthetics that offer lightweight, fast-drying comfort in active conditions. With options ranging from close-fitting tops and bottoms to thermal leggings, you’ll find the perfect fit for layering under your favourite outdoor kit.

Thoughtful details like flat seams, four-way stretch, and breathable fabrics make these base layers feel like a second skin—ideal for any intensity or climate. Upgrade your outdoor wardrobe with women’s base layers from Cotswold Outdoor and experience comfort, performance, and quality on every journey.

Women's base layers are designed to regulate body temperature, wick moisture, and provide insulation. They are ideal for outdoor activities like hiking, skiing, and running, as well as everyday wear in colder climates. Base layers act as a second skin, keeping you warm in winter and cool in summer.

Base layers should fit snugly against the skin without being restrictive. A close fit ensures effective moisture-wicking and temperature regulation. Avoid loose-fitting base layers, as they can trap cold air and reduce performance during outdoor activities.

Merino wool base layers are naturally breathable, odour-resistant, and insulating, making them great for cold weather. Synthetic base layers dry faster and are more durable, making them ideal for high-intensity activities. The choice depends on your activity and personal preference.

Yes, lightweight base layers made from breathable fabrics like merino wool or synthetic blends are perfect for warm weather. They wick sweat away from the skin, keeping you cool and dry during activities like running or cycling.

Base layers come in various styles, including sleeveless tops for warm weather, long-sleeved tops for colder conditions, leggings for full-body coverage, and shorts for high-intensity activities. Choose the type based on your activity and climate needs.


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