This is a brand new style of shoe for me - an interesting lightweight composite semi-uniform athletic shoe. The only thing I had to get used to was that they don't use a traditional tongue but an elastic ankle high sock = wrap style around the leg collar that rises near the ankle bone. It takes some time to get used to the change in sensation, but it's not uncomfortable. Comfortable, but if you have a narrow heel, that upper fabric collar, instead of the traditional tongue lock, can cause the shoe to slip a bit on the heel when wearing thin material socks.