The adidas women’s UltraBoost 4.0 DNA ‘White Hearts’ adds discreet romantic flourishes to the responsive runner. Blue, yellow and red hearts adorn the lateral side of the sneaker’s midfoot cage, finished in the same Cloud White tone applied to the Primeknit upper. On the opposite side, the hearts are relocated to the sidewall of the full-length Boost midsole, reinforced by a Continental rubber outsole. An unexpected flash of color arrives via a heel strip in Solar Red.