I’ve been a fan of the New Balance Minimus line for several years now. I used and abused my MX20V3s for about a year before upgrading and they performed admirably.
What first struck me about these shoes is how light and comfortable they are. It’s like they mold to your foot and become an extension of it.
Like the Nano 4.0s, the MX20V4s are made for weightlifting, aerobics, and running, and they work well for each.
The flat, rubberized sole compresses minimally and provides a good base, but now that I’ve tried Olympic weightlifting shoes, I have to say I like something wider and more rigid for my squatting. The comfort, foot support, and flexible shell makes them suitable for cardio as well, including jogging.