Tranemo Flame Retardant Base Layer Trousers 631290 | Merino Wool & Arc Flash Rated
The Tranemo Flame Retardant Base Layer Trousers 631290 complete the Merino wool base layer set, knitted from inherent flame retardant wool and FR viscose for genuine cold-weather protection under outer trousers. The elasticated waist keeps the fit simple, and the PFAS-free construction keeps the fabric free from persistent chemicals. Part of the Tranemo Skinsafe system, they are designed to pair with the matching long-sleeve top for layered flame and arc protection.
Key Features:
- Fabric: 60% wool, 38% viscose, 2% antistatic (Merino RX), approximately 200 g/m², inherently flame retardant
- EN ISO 11612 flame and heat protection, index A1+A2, B1, C1, F1
- EN 61482-2 arc flash rating, APC 1, ELIM 5.3 cal/cm²
- EN 1149-5 anti-static certification
- PFAS-free construction
- OEKO-TEX certified
- Elasticated waist
- Sizes XS-4XL
Together, these certifications make this a genuinely protective, PFAS-free base layer rather than an ordinary thermal.
Suitable For:
- Electricians and utility workers needing arc flash protection under outer trousers
- Cold-weather shifts where insulation and flame retardancy both matter
- Layering within the Tranemo Skinsafe protective system
- Pairing with the Tranemo Flame Retardant Base Layer 631590 for full coverage
- Workers prioritising PFAS-free, natural-fibre base layers
Kustom Workwear is a leading supplier of Tranemo flame retardant workwear, with fast delivery nationwide on all stocked items. Browse our full range of Flame Retardant & Arc Flash Workwear for more options.