What is the difference between barefoot shoes and traditional running shoes?

Three key differences: ① Drop — traditional shoes have 8-12mm heel-to-toe drop, barefoot shoes have 0mm (zero-drop). ② Toe box — barefoot shoes use a wide toe box for natural toe splay. ③ Cushioning — barefoot shoes use minimal cushioning for ground feel. Notace covers trail, road, gym, court, and daily. Start with 10-20% barefoot volume per week.