GUNZE KIREILABO Winter Long Sleeve Innerwear - Brand: GUNZE - Color: Black - Features: Cold protection, heat retention - Design: Crew neck, long sleeves The third photo shows the item being worn. Gray fabric is used on the back and inside of the shoulders for partial insulation. It's warm. I received this as a gift from my family, and I ended up buying the same product myself, so I'm selling this one. The item for sale is one unused piece. Thank you for looking.