Nike Women’s Free Metcom 3 trainers Black/ White size 7 worn once almost new condition! Rare find Stability for Strength The wide heel creates a solid base for lifting. A softer foam core cushions your foot, while a firmer outer layer is durable and stable. Wide internal webbing distributes pressure around your midfoot for a comfortable yet secure feel during sudden stops and quick cuts. Move Freely Nike Free technology in the forefoot creates flexibility for agility moves like burpees, planks and sprints. Stretch around the collar lets your foot move naturally as you burst, cut and brake.