BILLABONG Surf Pants Size: 25 My child wore these twice in the pool, and they have been stored at home since then. I think they are in relatively good condition. The waist is not elastic. This type does not have inner pants. The color is black on top, with thin pink and yellow stripes towards the bottom. Size is 25. Waist (laid flat) is approximately 34 cm. I compared them with Under Armour shorts size 160 (a little small). The waist was about 3 cm larger, and the rest was almost the same size. Please refer to the size chart. Please understand that these are used items. Thank you.