i've used these for lap swimming sessions (30 min to 1hr) -- they fog easily, left socket leaks, and my vision is blurred for about 5 minutes after I finish longer swims.
I am a 67 year old Open Water and Indoor swimmer. I have been using the Pro Style goggles with foam seals for as long as I can remember. At least 20 years. They have been changed several times, but they continued to work well. This new Sprint style is no good, both sides leak at the strap end possibly due to the thin foam, visibility stinks, and the fog up instantly. The one strap design is uncomfortable to me. I am a very loyal Speedo user, but they have ruined a good product, and I will have to look elsewhere. I have a slender nose, and slim face. Non-adjustable nose piece silicone just do not work for me. Sorry to leave. I found six pair on the internet, and I guess that will be that when they wear out. Hope poly Endurance suits are not the next to bite the dust.