SIEGE BASE LAYER
£120
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 defence will repel any onslaught.
The first line of defence
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 defence 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 – Minimises heat loss and increases protection from the elements in extreme conditions.
- Quarter Zip Design – Improving wearability when worn next to skin and minimises 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.
-(96-x-116-px).png?v=0&options=w_96)
THRUDARK TECHNOLOGIES
DEVELOPED FOR PEAK PERFORMANCE
CERAMIC TECHNOLOGY
SCHOELLER®
Toughened with a specially engineered Swiss Schoeller® fabric containing ceramic coating technology. When knitted fabrics are subjected to serious abrasion, for example in cycling, the new Schoeller® ceramic coating technology is the ideal solution. The unique ceramic coating offers reliable protection and a high level of comfort even in extremely elastic knitted fabrics. This innovative coating technique involves binding fine ceramic particles firmly onto the textiles, providing protection from excessive wear and tear as well as pilling. 4-way stretch, abrasion resistance, breathable, and hydrophilic.
.jpg?v=1678202726253&options=w_1296)
.jpg?v=1678202786111&options=w_1296)
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
Should you not be satisfied with your order, you have 30 days from the date of delivery to return this for an exchange, full refund or gift voucher credit.
All exchanges are free using our returns portal but please note returns for refund have £5.00 deducted from the final refund amount to cover the cost of return postage.
At ThruDark we are constantly striving to deliver a better service to our customers. By partnering with Klarna we can now offer all UK customers Buy Now, Pay Later with Klarna using their pay in 3 installments with 0% interest and no fees (UK). (Only applicable to orders over £35).
Learn more on our partnership with Klarna here
We offer free shipping to mainland UK addresses when you spend over £175.00.
For orders below this £175.00 threshold, we offer two delivery options:
- Standard £5.00 – estimated processing and shipping time of
2-3 working days. Please note that delivery times may vary depending on shipping location and during our busier periods. - Next Working Day £7.00 – orders must be placed before 2pm in order to qualify for next working day delivery. “Working days” are taken to mean Monday – Friday so orders placed after 2pm on a Friday will not be dispatched until the following Monday. UK bank holidays are not included for
the purpose of “working days”.
You can read our full delivery FAQs here.
- Standard £5.00 – estimated processing and shipping time of
We now offer "Click and Collect" as a delivery option to UK customers, giving you the chance to choose a secure drop off location from a list of approved stores.
Simply head to checkout and choose a drop off location of your choice to collect your delivery at a place and time convenient to you.
INTERNATIONAL SHIPPING
- Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Republic of Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Åland Islands, Albania, Andorra, Armenia, Belarus, Bosnia & Herzegovina, Faroe Islands, Georgia, Gibraltar, Greenland, Guadeloupe, Iceland, Kosovo, Liechtenstein, Mayotte, Moldova, Monaco, Montenegro, North Macedonia, Norway, Réunion, San Marino, Serbia, Svalbard & Jan Mayen, Switzerland, Turkey, Vatican City
- DHL Economy £14.99 – this is a 3-10 day delivery service depending on location.
- DHL Express International £19.99 – this is a 2-5 day delivery service depending on location.
We provide tracking numbers on all orders once fulfilled and dispatched by our warehouse team. These can be used to follow the progress of your delivery and in some cases to change address or delivery details if required. Please see below for links to track your parcel with our respective couriers:
*If you need to change the delivery address on your DPD parcel please use the DPD app before contacting Support@ThruDark.com, given the speed at which we dispatch and deliver parcels this is gives you a better chance of changing your address in time.*
