adidas Energy Boost Trainer - Men's Designed in collaboration with RG3. Made to power your workouts. This signature shoe brings Boost technology to your cardio, strength, and other training sessions. adidas insists that BOOST midsole rebounds faster and more completely than EVA to provide consistent cushioning. Synthetic upper enhances breathability and durability. Adjustable strap locks foot in place for stability and promotes lateral movement. Rubber outsole provides reliable traction. Low.