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2 Posts in this encyclopedia category3M™ Thinsulate™
It helps trap and hold body heat while allowing moisture to escape. The extremely fine microfibers in the Thinsulate™ insulation help trap air and block body radiant heat loss, making it an efficient insulator. The high warmth-to-thickness ratio of this insulation enables garments to be designed with less bulk and enhanced freedom of movement.
500D / 600D
What does 500D or 600D mean? The D stands for denier, which is a measure of the fineness of the yarn used. The more denier, the stronger and more durable the material is. For comparison, a human hair has 20 denier.