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RIFLES
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PISTOLS
-
APPAREL
-
EQUIPMENT
-
CONSUMABLES
-
CUSTOM & REPAIR
-
SELF-DEFENSE
-
WHERE TO PLAY NEWWhere to Play Airsoft?Come to the FOX ARENA, the official field recommended by M Tactical!★ Special discounts for members!Discover the Field
US Level I GEN III Underpants - MFH
12.50
10.00
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The US Level I GEN III Underpants by MFH are the essential base layer for tackling winter operational scenarios. Designed as the first layer (Level 1) of the renowned American military clothing system ECWCS Gen III, they are made from durable 100% polyester. Extremely lightweight, breathable, and quick-drying, they ensure perfect thermoregulation by instantly wicking moisture away from the skin. The design with an elastic waistband and reinforced seams guarantees a snug, robust, and comfortable fit under any tactical pants or uniform.
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Size Guide
This is an approximate conversion table to help you find your size. If you have already purchased an item from our brand, we recommend you select the same size indicated on its label.
Men's Sizes
| International | XS | S | M | L | XL | XXL | XXXL |
|---|---|---|---|---|---|---|---|
| Europe | 32 | 34 | 36 | 38 | 40 | 42 | 44 |
| US | 0 | 2 | 4 | 6 | 8 | 10 | 12 |
| Chest Circumference (inches) | 33-35" | 36-38" | 39-41" | 42-44" | 45-47" | 48-50" | 51-53" |
| Chest Circumference (cm) | 84-89 | 91-97 | 98-104 | 107-112 | 114-119 | 122-127 | 129-134 |
| Waist Circumference (inches) | 28" | 30" | 32" | 34" | 36" | 38" | 40" |
| Waist circumference (cm) | 71 | 76 | 81 | 86 | 91.5 | 96.5 | 101.5 |
LOWA FOOTWEAR SIZE CHART
SIZE SELECTION:
THE SIZES IN THE DROP-DOWN MENU ARE UK SIZES (ENGLISH)
conversion chart: UK size - (IT size) - size in mm
Size 6.5 (40) 257mm
Size 7 (40 3/4) 262mm
Size 7.5 (41.5) 266mm
Size 8 (42) 270mm
Size 8.5 (42.5) 274mm
Size 9 (43 1/4) 278mm
Size 9.5 (44) 283mm
Size 10 (44.5) 287mm
Size 10.5 (45) 291mm
Size 11 (46) 295mm
Size 11.5 (46.5) 300mm
Size 12 (47) 304mm
Size 12.5 (48) 308mm
Size 13 (48.5) 312mm
NEED ADVICE ON CHOOSING A SIZE?
Take one of your sneakers and look at the size in mm or cm, look at the diagram above to see what it corresponds to and order your size!
e.g., your sneaker is 27.2 cm long? Great, the closest and most correct size will be: "TG 8.5 (42.5) 274mm", in the purchase menu select size 8.5UK!
Size Guide
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The ECWCS Gen III System (Level 1):
These thermal underpants are not just a simple winter garment; they are part of the layered system (Extended Cold Weather Clothing System) developed for the United States Army. "Level 1" has the crucial task of being in direct contact with the skin: it must not only retain heat but, above all, expel sweat. Keeping your legs dry during dynamic play or marching is the only way to avoid hypothermia or cold shivers during subsequent static ambush moments.
High-Performance Materials:
Made from 100% high-quality polyester, this garment leverages excellent hydrophobic properties. It is designed for rapid moisture-wicking and boasts significantly faster drying times than classic cotton fabrics. Its incredible lightness (weighing only 300g in size L) makes it imperceptible and completely unbulky under camouflage pants.
Comfort and Tactical Durability:
Designed for the operator in constant motion, the material features natural elasticity which, combined with the robust elastic waistband, ensures a perfect fit to the body. To withstand the stresses of military simulations, such as crawling and sprinting, all seams are made with reinforced stitching to prevent annoying accidental tears in the field.
Key Advantages
- Tactical Base Layer: Exact replica of Level 1 of the American ECWCS Gen III system.
- Quick-Drying: Polyester wicks away sweat and dries in record time.
- Ultra-Lightweight: Maximum thermal insulation without limiting agility.
- Snug Fit: Elastic fabric and waistband for exceptional comfort in motion.
- Robust Construction: Reinforced seams to withstand typical airsoft wear and tear.
Technical Specifications
- Manufacturer: MFH (Germany)
- Model: US Level I GEN III Underpants (ECWCS)
- Type: Thermal Leggings (Base Layer / Level 1)
- Material: 100% Polyester
- Features: Breathable, quick-drying, lightweight
- Construction: Elastic waistband, reinforced seams
- Weight: 300 g (for size L)
- Color: Black
Package Contents
- 1x MFH US Level I GEN III Thermal Underpants (Black)
Pro Tips for a Perfect Setup
The secret of the layering system: The most common mistake in winter airsoft is wearing cotton thermal leggings or non-technical garments under your uniform. Cotton soaks up sweat during runs and, as it cools down during breaks, it literally freezes you. By wearing this Level 1 polyester layer in direct contact with your skin, you create a barrier that pushes moisture towards the outer layers, keeping you warm, dry, and ready for action even in near-zero temperatures.