BREATHABILITY: Premium engineered knit material engineered for breathability and stretch, reinforced with PWRTAPE for durability and lockdown Running feels different for everyone – and that's exactly how it should be. Whether you're chasing a personal record or just chasing the feeling, Velocity 4 is built to move with you. Any runner, any time, any distance, it can endure, perform, and exceed expectations. Puma's lightest Velocity yet features a full-length NITROFOAM midsole, improved breathability with new mesh in the upper, and a PUMAGRIP outsole for the best traction in the game.