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Särmä TST L5 Thermal Pants

Särmä TST L5 Thermal Pants

Price 154.99 USD excluding VAT

Designed for quick and easy layering over regular field/combat uniforms without the need to remove boots or gear. Lightweight, breathable and packable with reinforcements where you really need them. Overall a significant improvement over the Finnish Defence Forces issue M05 cold weather trousers.

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Designed for quick and easy layering over regular field/combat uniforms without the need to remove boots or gear. Lightweight, breathable and packable with reinforcements where you really need them. Overall a significant improvement over the Finnish Defence Forces issue M05 cold weather trousers.

  • Generous fit for layering over field trousers
  • Zipper fly with button
  • Built-in adjustable waist belt with G-hook
  • Long two-way side leg zippers
  • Articulated knees
  • Reinforced knees, shins and seat
  • Tight elasticized cuffs
  • Two front thigh pockets
  • Weight: 720 g / 1.58 lb (Medium Regular)
  • Materials:
    • Outer fabric: 100% PA ripstop, 70 g/m2
    • Reinforcements: 500D Cordura
    • Insulation: Climashield Apex 100 g/m2
    • Lining: 100% PES
    • All materials are NIR compliant

Zip open the legs, open the fly and just layer up over your regular clothing and you're ready to relax in toasty, insulated warmth! Since low activity usually involves some sort of static activity (usually sitting or lying down) the seat, knees and shins are reinforced with 500D Cordura to protect the other lightweight materials from abrasion. Full-length side leg zippers offer access to your pockets and gear. You can even pop out a pistol holster through the thermal trousers by opening the top of the leg zipper!

Although the design is focused at layering over all your other gear, the L5 Thermal Trousers can also be used as stand-alone outer layer trousers. The two thigh pockets are no full-sized pleated cargo pockets but offer enough room to store some essential items. The leg and fly zippers offer ventilation to help manage your thermal load during high activity levels.

The cuffs are designed to be tight and secure, with a sewn-in piece of elastic webbing. The fit is designed for wear over regular combat boots, when worn this way the tight elastic will keep the cuffs in place and snow outside. When worn with thicker, insulated winter boots the legs are best worn inside the boot shaft.

L5 - Thermal Shell

The fifth layer of the Särmä TST Clothing System is designed for quick layering over your field wear, or for wear as a stand-alone cold weather uniform. Generous ventilation zippers minimize the thermal load of the layer, allowing the wearer added comfort. Camouflage prints and visible accessories are 100% NIR compliant.

Take a look at our Särmä TST Clothing System!


Sized according to recommended user height and waist circumference. The fit is generous to allow the trousers to be layered on top of warm mid layers and even regular field trousers.

The inbuilt adjustable G-hook belt allows you to adjust the waist to fit exactly as tight as you want it.


100% polyamide ripstop, weight 70 g/m2. This is the same fabric we use in the Särmä TST Tarps and backpack covers, only without the waterproof polyurethane coating. Lightweight and breathable, a solid fabric choice for this type of winter overwhites.

Climashield Apex insulation, 100 g/m2. This is some of the best insulation there is, fantastic weight-to-insulation ratio and great performance even in wet conditions. Apex is a continuous fibre filament, this means it does not need any attaching stitching as you would find on common polyester or down loft garments. By eliminating these stitches we also eliminate possible cold spots, further adding to the insulating properties of the garment.

Sewn in Estonia

These are sewn in Estonia, by an experienced factory that has a long history of producing clothing for military, law enforcement and emergency services.

Särmä TST

Särmä TST is Varusteleka's in-house brand of clothing and gear designed for military and law enforcement end-users. Our clothing and equipment are made in co-operation with a number of experienced manufacturers with a strong background in producing clothing and gear for military and law enforcement officials, most notably for the Finnish Defence Forces. For further reading check out the Särmä TST corner of our website.

Särmä TST products are covered by a 12-month warranty against defects in materials and workmanship. For further information please read our detailed warranty guide.


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100 %
4.5 / 5
3 ratings
Suomi (1)
English (2)
I would recommend for a friend

20.12.2018 (Edited 25.01.2019)
Hyvät on bögät! Taskut yllättävän isot. Punteissa yllättävän tiukat kuminauhat, ei säätöä. Ajatus on varmaan estää lumen meno kenkiin, ilman ylimääräistä säätämistä. KISS! Puntit sais olla 3 cm pidemmät.
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I would recommend for a friend

These thermal pants are a great addition to your outdoor-kit for really cold weather. If you layer your clothing properly, you will stay warm even in the worst situation. The material is durable and the insulation works great. The sizing is very exact.
A couple (little) issues I have with these, and the reason why I gave only a four-star rating:
1. The zippers on the side are really good, until you want to close them over your boots. They are too tight and it takes a lot of effort to get them closed completely.
2. The thigh-pockets are nice, but the Velcro-closure has some trouble to keep up with heavier loads in these pockets (Maybe an additional button would help?).
1 0 Report abuse
I would recommend for a friend

Warm and true to size. My only complaint has already been mentioned about the cuffs. It is difficult if not impossible to zip them completely around your boots if you have winter boots or layers in between the cuff area.

Other than than, they are excellent. Accessible pockets on the front thighs, reinforced areas where needed, and not excessively swishy like many insulated winter pants. Customer service was superior.
1 0 Report abuse


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