ATHLONIA triathlon wear, top and bottom set. It's probably 3mm, but it feels like it might be 4mm thick. Size: M (estimated) Should fit someone around 165-170cm tall and 60kg. The top is in decent condition. The bottom has some damage, but it should still be usable with repairs. Made for triathlon, it's made of a very stretchy material. - Brand: ATHLONIA - Color: Black - Type: Triathlon wear - Condition: Used (many scratches) Thank you for looking.