My previous pair of Speedo "zoomer" fins started to split after about 10 years of ownership. No complaints there, I think that's a reasonable lifetime. I ordered these as a replacement and I'm very pleased with the fit, comfort, and style. The only problem is that after only a couple of days, my dog decided one of them was a chew toy. Now I need to replace this pair after less than a week. I can't blame Speedo for that though

helps with kicking workout.

I train in these at least 3 times per week. The rubber is pliable and thus very easy on the feet. Fin size just right for fitness workouts.

Fit well, but too expensive to replace twice a year. The quality of the rubber is poor and the fins rip easily. Fins from other brands have last 2-3 years, Speedo fins lasted about 8 months.

I use these during Masters practice. Really nice!