Unisex hidden heated vest, with adjustable temperature up to 60°C. - Color: Black - Included: USB power bank - Design: Heated vest - Maximum temperature: 60°C - Intended use: Unisex - Features: Hidden heated vest Thank you for viewing. The size is S. I purchased it and used it only once. I bought it thinking it would be useful for outdoor work, but I moved to office work and only used it twice. It's warm. Battery included. I want to sell it quickly, so please comment if you'd like to negotiate the price. I will ship via Takkyubin Compact.