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Siege

Lightweight mid-layers, ideal for hiking, mountaineering, skiing and trail running in colder climates. Constructed from innovative Polartec® Power Grid™, the Siege Tech Fleece will keep you insulated without overheating.

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buy now, pay later with klarna

buy now, pay later with klarna

"Decades of combined Special Forces’ experience has enabled us to critique existing performance wear to develop ThruDark products to the highest specification possible."

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Siege

Lightweight mid-layers, ideal for hiking, mountaineering, skiing and trail running in colder climates. Constructed from innovative Polartec® Power Grid™, the Siege Tech Fleece will keep you insulated without overheating.

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