[Applicable scenarios] Daily home travel fitness and exercise etc [Target audience] Men 【 Washing Instructions 】 It can be hand washed or machine washed do not soak for a long time do not bleach and the washing solution temperature should not exceed 45 º C. [Special note] This size data is measured when the clothes are laid flat and the chest circumference measured flat is 1/2. Due to different measurement methods an error within 2-4cm is considered a normal phenomenon