Mountain Warehouse Mens Keep The Heat Thermal Bottoms
LMore than 10 pieces in stock at third-party supplier
Colour2
Size7
Product details
The Keep The Heat Thermo Long Johns from Mountain Warehouse are high-quality functional underwear designed specifically for active individuals. They offer an optimal combination of thermal insulation and moisture management, making them ideal for cold weather conditions. The long johns are made from a thoughtfully crafted blend of materials, including acrylic, polyester, viscose, and elastane. These materials provide a comfortable fit and freedom of movement while being lightweight and quick-drying. The elastic cuff at the ankle ensures a secure fit, preventing the underwear from slipping during intense activities. The solid color design allows for versatile pairing with other clothing items, while the Isotherm technology provides additional warmth. Thus, these thermo long johns are an excellent choice for outdoor activities or as an extra layer during the cold season.
- Isotherm technology for optimal thermal insulation
- Moisture-wicking and quick-drying
- Lightweight construction for high comfort
- Elastic cuff at the ankle for a secure fit.
Clothing size | L |
Target group | Men |
Material composition | 25% viscose, 32% polyester, 37% polyacrylic, 6% spandex |
Item number | 65549417 |
Manufacturer | Mountain Warehouse |
Category | Functional underwear |
Manufacturer no. | UTMW3488 |
Release date | 5.12.2025 |
Colour | Grey |
Exact colour description | Charcoal |
Upper | Polyacrylic, Polyester, Spandex, Viscose |
Material composition | 25% viscose, 32% polyester, 37% polyacrylic, 6% spandex |
Target group | Men |
Age group | Adults |
Clothing size | L |
Layer of clothing | Base layer / functional layer |
Fabric properties | Heat insulating, Lightweight construction, Moisture wicking, Quick drying |
Country of origin | China |
CO₂-Emission | |
Climate contribution |
Ingredients | 37% acrylic/32% polyester/25% viscose/6% elastane. |
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Reviews & Ratings
Warranty score
How often does a product of this brand in the «Functional underwear» category have a defect within the first 24 months?
Source: Digitec Galaxus- Mountain WarehouseNot enough data
- 1.Mons Royale0 %
- 1.Rukka0 %
- 1.SAXX0 %
- 1.Smartwool0 %
Warranty case duration
How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?
Source: Digitec Galaxus- Mountain WarehouseNot enough data
- CompressportNot enough data
- CraftNot enough data
- Hi-TecNot enough data
- IcebreakerNot enough data
Unfortunately, we don't have enough data for this category yet.
Return rate
How often is a product of this brand in the «Functional underwear» category returned?
Source: Digitec Galaxus- Mountain WarehouseNot enough data
- 1.SAXX0 %
- 2.Hi-Tec2.5 %
- 3.Icebreaker3.1 %
- 4.Craft3.3 %

