3M™ Thinsulate™ Insulation Type B is lightweight, warm,
moisture-resistant and breathable. B400 GSM 420 g/m², with thermal resistance clo 1.8*
Designed to resist
compression and maintain warmth under moderate pressures
Breathable & Moisture-resistant
Type B is a water-Resistant Insulation intended for footwear
Materials that utilize fine microfibers to trap air and retain heat to sustain warmth in cold temperatures. Consists of unfinished Thinsulate insulation that can be used in finished products such as garments and bedding.