adidas adizero Ubersonic 2 Miami Open Men's Tennis Shoes Sky Tint/Signal Coral/Whit : The adidas adiZero Ubersonic 2 tennis shoes use incredibly lightweight materials to help you unleash your speed on the courts. Now this version is even more responsive and has a Primeknit bootie for seamless comfort and fit. Bright colors and modern style make for an exciting new addition. Shoe Technology Upper: Primeknit bootie hugs the foot, providing superior fit and comfort. Polymer mesh upper gives more stability in the forefoot. External Dual Density SPRINTFRAME construction ensures maximum heel support while preventing pronation. ADITUFF(TM) strategically placed TPU material in toe area and medial side provides long-lasting durability for the extreme abrasion that occurs during tennis movements. Midsole: ADIPRENEA(R) and ADIPRENEA(R)+ cushioning element in rearfoot and forefoot. Outsole: ADIWEAR(TM) 6 extremely durable outsole rubber provides secure grip in all direction for abrasive courts.