Uniqlo's "Extra Warm Heattech Cotton Mock Neck T-Shirt/9-Sleeve" in size L. My husband bought it, but he only took it on a two-night trip, so it's in excellent condition, having hardly been worn. Extra Warm Heattech Cotton Mock Neck T-Shirt/9-Sleeve Size L 472088 52% Cotton, 41% Acrylic, 7% Polyurethane * Shipping from Okinawa Prefecture, so delivery may take longer than usual. Please allow extra time for delivery when purchasing. * Please purchase only if you understand that this is a used item. Although it is clean, there may be some slight wear and tear from washing, so please refrain from purchasing if you are sensitive to such details or if you are looking for a perfect condition item. Color: Black系 (Black-based) Pattern/Design: Solid