Does the Nike Air Trainer 1 fit true to size?
Most buyers can start true to size. The Air Trainer 1 has a structured old-school upper and forefoot strap, so it can feel more secure than a loose lifestyle runner. Wide feet should be careful because going up just for width can make the heel and strap feel awkward. Owner sizing threads are useful here because the true-to-size advice depends on whether you like a snug trainer fit.

















