The product is a brand new Stone Island Metal Nylon Vest in men's medium size, featuring a black color and a nylon material. It is perfect for casual occasions year around with the vest style designed for a fashionable and practical look. The outer shell material is nylon, with the Stone Island logo accents adding a touch of authenticity and style to the piece. This vest is a versatile and stylish addition to any man's wardrobe, providing a trendy vibe for everyday wear.