GULL diving boots with non-slip soles, black and red design. - Brand: GULL - Color: Black/Red - Type: Diving Boots - Features: Non-slip sole These shoes are size 24, but they felt a bit tight when I tried them on once, so I haven't used them since. Therefore, I am selling them. I think they would fit someone who wears size 23 better, so please consider that. Please note that returns and exchanges are not accepted. Thank you for looking.