SIEGE TECH FLEECE HALF ZIP
Lightweight fleece
£110
Men's khaki lightweight fleece mid-layer designed for hiking and mountaineering in colder climates. Constructed from Polartec® Power Grid™ for insulation without overheating. Features half zip design to balance heat retention and venting, elasticated sleeve cuffs with ThruDark detailing and chest pocket for storage.
Polartec® Power Grid™ features patented grid construction knit that enhances moisture wicking whilst retaining insulation at minimal fabric mass. Maximises breathability without compromising on insulation. Half zip design allows adjustment to dump heat during periods of activity. Elasticated cuffs keep sleeves taut to arms, minimising heat loss and improving wearability when layered under a hardshell or insulated jacket.
-
Embroidered insignia
-
Polartec® Power Grid™ fabric construction
-
1 chest pocket with YKK zips
-
Elasticated sleeve cuffs
Dynamic Movement
Breathability
Wind Resistance
Thermal Rating
Durability
Main: 93% Polyester (60% Recycled Polyester), 7% Spandex
At ThruDark, we are committed to sustainability and quality. While a product’s lifespan may come to an end, we encourage repairs and responsible replacements, ensuring your kit is always mission ready.
5 Year Warranty: This product is covered by our 5 Year Overwatch Warranty, offering free repair or replacement in the unlikely event of a manufacturing defect. We stand by the quality of our kit and will always endeavour to make things right should an issue arise.
Lifetime Repairs: Where replacement isn’t possible, we’ll do everything we can to repair and restore your gear — helping extend its life and reduce environmental impact through responsible, sustainable aftercare.
Conditions apply. For full details, click below.
Learn MoreFEATURES





















