I used these goggles for probably about half an hour during swim practice before I had to switch to my old ones. I had to pull them extremely tight, and even then they seemed to leak. It might be just me, but I would save you money.

my previous pair had the eyepieces connect with one seemless molded piece of soft plastic.  this pair is not as soft nor as comfortable.  in fact, they hurt the bones around my eyes and are not at all well-fitting.

They don't fit my face right I've got to get them seated in exactly the right place to have a good seal.