▎ 摘　　要

NOVELTY - The invention relates to an outer sleeve with graphene heat preservation material, which is applied in the field of heat preservation sleeve, comprising a sleeve main body, the outer sleeve main body is provided with a heat preservation liner, the heat preservation liner is connected with the outer sleeve main body through the connecting piece; the insulating inner container comprises a close-fitting layer, an insulating layer and a locking temperature layer; the temperature locking layer is attached to the outer sleeve main body, the insulating layer is connected to one surface of the locking temperature layer far away from the outer sleeve main body, the close-fitting layer is connected to one surface of the insulating layer far away from the locking temperature layer. The invention has the effect of providing warmth for the wearer without depending on the electric heat, so as to reduce the possibility of damage to the wearer caused by the short circuit of the traditional warming clothes heating wire folding.