SIEGE BASE LAYER
$150
Excl. tax & duty
The battle-tested base layer, insulated and hard wearing enough to be worn on its own or as part of a layering system. Developed with Polartec® Power Grid, a geometric construction...
SIEGE BASE LAYER
The battle-tested base layer, insulated and hard wearing enough to be worn on its own or as part of a layering system.
Developed with Polartec® Power Grid, a geometric construction fabric that enhances moisture evaporation and supports thermal regulation. The grid design creates open air channels that improve breathability and reduce fabric mass. With a high neck collar and integrated thumb loops for increased cold weather protection.
When under Siege from the cold, this first line of defense will repel any onslaught.
The first line of defense
Siege Base Layer
Technical
SIEGE BASE LAYER
The battle-tested base layer, insulated and hard wearing enough to be worn on its own or as part of a layering system.
Developed with Polartec® Power Grid, a geometric construction fabric that enhances moisture evaporation and supports thermal regulation. The grid design creates open air channels that improve breathability and reduce fabric mass. With a high neck collar and integrated thumb loops for increased cold weather protection.
When under Siege from the cold, this first line of defense will repel any onslaught.
DYNAMIC MOVEMENT
Breathability
Wind Resistance
Thermal Rating
Durability
Product Resistance
Temperature Rating
Extreme
Enduring
Essential
Versatile
Lightweight
Feature Set
v1.0- Polartec® Power Grid Fabric - Grid construction knit that strengthens performance efficiency by increasing warmth and breathability. A layout of geometric patterns improves compressibility, enhancing the warmth to weight ratio of the garment and aiding moisture wicking under the arms.
- Elasticated Thumb Loops – For maximum thermal retention in extreme conditions.
- Industry Leading YKK zips - For zips that won't jam or break when the going gets tough.
- Ergonomic Cut – For a slimmer fit aiding layering and minimising heat loss.
- Schoeller® Ceramic Coated Chest Pocket – Fine ceramic particles woven firmly into the pocket provide protection from excessive wear and tear and pilling, giving you confidence in the storage of your mission essential items.
- High Raised Neckline – minimizes heat loss and increases protection from the elements in extreme conditions.
- Quarter Zip Design – Improving wearability when worn next to skin and minimizes heat loss. Chin guard prevents zip rubbing against the face during dynamic activity.
Please refer to fabric care instructions for particular garment care. If you should have any further queries about the care of your garment please send us an email to support@thrudark.com.
Find out about the latest ThruDark product developments here.
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THRUDARK TECHNOLOGIES
DEVELOPED FOR PEAK PERFORMANCE
Power Grid
Polartec®
Polartec Power Grid™️ construction knit strengthens performance efficiency by increasing warmth and breathability, while also reducing fabric mass. These geometric patterns improve compressibility, moisture wicking, and add technical style. By reinventing thermal warmth possibilities, Power Grid™️ is a minimalist design that maximises fabric performance.
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Size guide
Chest
Measure at the fullest part of the chest from just under the arms
Fits tight to the body's contours, for a compressed feel.
Slimmer fitting technical wear fits closer to the body than regular fitting items but is not skin tight. Consider sizing up for a more regular fit.
Not athletic, not loose-fitting - buy your regular size.
A more relaxed fit for a more lifestyle feel - considering sizing down for a more regular fit.
OVERWATCH WARRANTY
This product is covered by ThruDark Overwatch Warranty - a Tier One warranty policy like no other. If something goes wrong with your kit, trust that our Overwatch team has got your back.
FAQ's
ThruDark is dedicated to the quality of our products and the satisfaction of our customers. However, should you not be satisfied with your purchase, items can be returned for a refund or exchange within 30 days after your order is delivered.
In order to be eligible for a refund, your item or items must be returned in an identical condition to that in which it or they were received by you, defining this condition as; new, unworn, unaltered; displayed in its original packaging with all coins & bags included
Worldwide shipping is FREE for orders over £175 or from £5 for UK delivery or from £10 for International (depending on your location) for orders below £175.
The estimated processing and delivery time is approximately 2 working days for UK orders and up to 7 working days for Internationals; however, this timeline may vary depending on shipping destination. Every order is sent via DPD express which is a 1-2 day service but this can vary in line with your processing time.
We also offer next working day delivery to the UK (for £7.00). To qualify for next day delivery, orders must be placed before 2pm in order to be delivered the next day.
