This is a wetsuit from Blue Seventy, a long-established manufacturer of triathlon wetsuits. It has a smooth skin exterior and a jersey interior (the inner forearms also have a jersey material on the exterior). The fabric thickness varies by part, as follows: - Arms, Back: 2mm - Chest, Abdomen: 3mm - Lower Abdomen, Glutes, Thighs: 5mm - Below the Knees: 4mm The size is WMA (Women Medium Athena). The manufacturer's website has the following explanation of Athena sizes, for your reference: The "A" (Athena) sizes offer a larger size for a shorter frame, allowing women with more curves to comfortably find a good size. This is a personal import. It was used a few times in the pool discipline (STA) of freediving several years ago and has been stored since then. It has not been used in the ocean. It has wrinkles on the front due to being folded for storage, but there are no issues with the wetsuit's functionality. There are no tears, and the condition is very good. Please feel free to contact me if you have any questions. Thank you for looking.