Base Layer Tops 

20
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Aenergy FL Longsleeve Men
The ultimate high-performance longsleeve

bluesign® PRODUCT | Fair Wear | Recycled

£42£70–40%
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Aenergy FL T-Shirt Men
The ultimate high-performance T-shirt

bluesign® PRODUCT | Fair Wear | Recycled

ÂŁ60
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Aenergy FL Tank Top Women
The ultimate high-performance racerback

bluesign® PRODUCT | Fair Wear | Recycled

£30£50–40%
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Selun FL Tank Top Women
The go-to top for the outdoors

Solution dye | bluesign® PRODUCT | Fair Wear | Recycled

£25.20£42–40%
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Selun FL T-Shirt Men Logo
The go-to tee for the outdoors

Solution dye | bluesign® PRODUCT | Fair Wear | Recycled

£28.80£48–40%
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Aenergy FL T-Shirt Women
The ultimate high-performance T-shirt

bluesign® PRODUCT | Fair Wear | Recycled

£36£60–40%
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Selun FL T-Shirt Women Logo
The go-to tee for the outdoors

Solution dye | bluesign® PRODUCT | Fair Wear | Recycled

£28.80£48–40%
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Selun FL Sun Hoody Women
The go-to lightweight hoody for the outdoors

Solution dye | bluesign® PRODUCT | Fair Wear | Recycled

ÂŁ75
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Selun FL Sun Hoody Men
The go-to lightweight hoody for the outdoors

Solution dye | bluesign® PRODUCT | Fair Wear | Recycled

ÂŁ75
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Selun FL Longsleeve Men Logo
The go-to shirt for the outdoors

Solution dye | bluesign® PRODUCT | Fair Wear | Recycled

£36£60–40%

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Elevate your outdoor performance with Mammut's Base Layer collection.

Engineered to be the foundation of your layering system, these essential garments offer unparalleled comfort and functionality in any environment.

Our range features a variety of materials and weights to suit diverse needs. Luxurious merino wool options provide natural temperature regulation and odor resistance, perfect for extended wear. Lightweight synthetic blends offer superior moisture-wicking properties, ideal for high-intensity activities. For colder conditions, our insulated base layers deliver exceptional warmth without bulk.

Mammut's attention to detail shines through in every piece, with ergonomic designs that move with your body and flat seams to prevent chafing. Whether you're scaling peaks, carving down slopes, or embarking on a multi-day trek, our base layers keep you dry, comfortable, and focused on the adventure ahead.

Experience the Mammut difference – where cutting-edge technology meets Swiss precision in every stitch of our base layer collection.