PURPOSE: To provide a warmth-retaining wear capable of absorbing sunlight to accumulate heat and releasing the accumulated heat in a cold environment to keep the warmth-retaining effect.

CONSTITUTION: The sunlight-absorbing heat-accumulation wear is composed of at least an outer layer and an inner layer. The outer layer is a surface cloth layer consisting of a cloth made of a fiber containing a sunlight-absorbing material such as carbon powder or coated with a resin or film containing the material and the inner layer is a heat-accumulation layer consisting of a closed vessel such as a sealed tube containing a heat-absorbing and releasing substance exhibiting the phase transition between the molten state and the solidified state in the working temperature range such as a polyethylene glycol having an average molecular weight of 700-20,000.