NWT Karbon Transform Jacket Size XL Black Insulated Puffer! Brand New! The NWT Karbonn Transform Jacket in size XL is a brand new black insulated puffer jacket designed for men. Made from durable nylon, this regular fit jacket is perfect for keeping you warm and stylish in colder weather. This jacket does have the US open logo on the side of the sleeve! The insulated feature adds extra comfort and protection, making it a practical and practical choice for outdoor activities or everyday wear.