Man therefore gets his vitamin A by eating plants which are rich in carotenes or by eating those parts of domestic animals which are rich in the vitamin itself: liver, butter and cream from milk; egg yolk; and cod-liver oil.
If the vamp is too loose, your heel may slip out of the shoe, while a vamp that is too tight can cause toe pain or numbness. Counter. The heel counter is the back of the shoe that holds the heel in place. A stiff counter offers greater heel control and stability.
Responsive Cushioning Nike Zoom unit in the heel and forefoot provides cushioning right where you need it, adding additional snap and responsiveness to your footstrike. Aggressive Traction Tough rubber outsole with aggressive grip gives you added agility and control on turf.