- No.
- Asics Gel Kayano (training), Asics DS Trainer (training speedwork and some racing), Mizuno Wave Revolver (racing only), and about to get a pair of Adidas for 5Ks (can’t remember model).
- Yes, but depends on your foot. I have a neutral foot with a good forefoot strike, so I don’t need hardly anything but a sole on my feet. Some people could get really injured without enough support. You’ll have to figure out if you can tolerate the lack of support, but if you can, lighter is so much more fun to race in.
- Asics DS = 9.5 oz, Mizuno Wave Revolver = 7.0 oz, Adidas = 3.6 oz (or around there).