See pic of Oneil size chart- I think my mentioned size range more accurate. Good condition used Oneil surfing Longjohns sleeveless tag size Large and Oneil Sleeves tag size XL. I think these will fit teen or adult athletic build five feet to six feet tall,chest 32-38 and waist 28-38. very good condition and only used a few times. All zippers work fine. No holes or tears.No repairs. Measurements are Longjohn top to bottom 57, Sleeves top to bottom 26 and armpit to end of sleeve 20and sleeves across chest under armpits 16. This fit teen 58-510 34-38 waist and 150-175lbs.Chest 36-40 snug.