Aerogels are a class of synthetic porous ultralight material derived from a gel, in which the liquid component for the gel has been replaced with a gas, without significant collapse of the gel structure, which result in a solid with extremely low density and extremely low thermal conductivity.
Aerogel yarn in the textile and clothing market is mainly concentrated on winter cold-proof and thermal insulation products. Traditionally, this clothing sub-market is mostly occupied by cotton, down, wool, cashmere, and acrylic products.