Soft heel grip prevents slipping inside
The adidas UltraBoost 4.0 Black is the fourth version of the modern classic running shoe in the always popular black and white color scheme. The most standard colorway in the high performance running shoes history, the UltraBoost 4.0 features an all-black upper, white Boost midsole, and black rubber outsole. The UltraBoost 4.0 features a Primeknit weave across the upper that has textured stripes woven into the lightweight and breathable material. The UltraBoost 4.0 Core Black is a versatile everyday essential for any fan of the stylish and comfortable runner. 4.0 Core BlackCasual Shoes With Smooth Interior Reduce Skin Irritation