The seller just wants to sell you something instead of helping and advising. I explained him that I need fins for snorkeling and shallow freediving which can fit in hand luggage to travel light. Instead he sold me the scubapro go travel. Which is perfect for scuba but useless for what I wanted. They have a positive buoyancy thus requred additional ankle weights 300gr each. Also for my weight, hight and weak legs they are huge. Feels like pieces of boards attached to my legs. That I relised on first day in the sea. My holiday ruined. I was not able to use this fins.