When the temperature's high, but your motivation's higher. Lace on these adidas Ultraboost running shoes and head to the shady side of the street. The blend of comfort, responsiveness and breathability will have you feeling good through warm-weather miles. HEAT.RDY keeps you cool, and BOOST returns energy with every stride. Just don't forget to drink water. Lace closure. adidas PRIMEKNIT textile upper. BOOST midsole. Linear Energy Push system.