This is a set of four GU Style Heat Crew Neck T-shirts (long sleeve). Size: S, Color: Black. They have been used, but are still in good condition. Material: 59% Polyester, 34% Rayon, 7% Polyurethane Warm innerwear that combines warmth and lightness. 9/10 length sleeves that are not easily visible from long-sleeved tops. It has sweat-wicking and quick-drying functions that quickly absorb and dry sweat, so you can wear it comfortably without getting stuffy. It has antibacterial and odor-resistant functions that suppress the growth of odor-causing bacteria and reduce unpleasant odors. It has a heat-retaining function that prevents heat from escaping, so you can wear it warmly even in cold weather. It uses a moisturizing processed material with a smooth texture. It uses moisture-absorbing and heat-generating material that absorbs water vapor evaporating from the body and generates heat. It has antibacterial and odor-resistant functions that suppress the growth of bacteria that cause odors when drying indoors. It has an anti-static function that suppresses unpleasant static electricity when putting on and taking off. It is made of stretchy material, so it is easy to move in and provides an optimal fit. Would you like to consider it? Size: S