▎ 摘　　要

NOVELTY - The utility model claims a garment material field, specifically relates to a ultra-thin hair thermal underwear. the ultra-thin thermal underwear by ultra-red-velvet warming fabric cutting splicing by sewing; the ultra-velvet warming fabric knitted on 32 single-face circular weft knitting machine is formed by thermal blended yarn; the thermal blended yarn comprises core layer and outer cladding layer, said core layer is covered inside of the outer cladding layer, said core layer comprising a twist-free graphene fibre and spandex fibre, the spandex fiber is S-shaped spacing wound outside the graphene fiber without twisting. the ultra-thin thermal underwear is capable of producing heat and effect of the thermal warming special structure by functional fibre blended yarn and which itself is so that clothes manufactured by the same also ensures more thin and ventilated warming effect, at the same time, more suitable for wearing.