The Nike Free Trainer 5.0 NRG designed to let your feet move more freely and naturally, which means your muscles will be doing a bit more work than demanded of them in some other athletic shoes
The Nike Free Trainer 5.0 NRG Men’s Training Shoe offers an adaptive, supportive fit, lightweight flexibility for comfort and natural movement during intense training sessions. The colorful Free 5.0 training shoes are constructed with Nike’s famous Dynamic Fit system that is anchored under the midfoot and adjustable through the laces for customized lockdown and a secure fit. They’re designed to let your feet move more freely and naturally, which means your muscles will be doing a bit more work than demanded of them in some other athletic shoes.