MINIMALIST / BAREFOOT RUNNING SHOES The Nike Free 3.0 V5 has the most minimal barefoot-like feel compare to the other Nike Free family. The Nike Free 3.0 V5 Running Shoe is designed for runners seeking the most flexible & natural ride, with an ultra-low, ultra-flexible midsole that offers the benefits of natural motion in a minimalist design. It is the most flexible compare to both 4.0 & 5.0 & it has a sock-like fit that hugs nicely on your feet to create a perfect hold. The main features & differences of the 3.0 compare to the other two Nike Free. Superior Flexibility The flex groove design—made up of deep cuts along the length & width of the midsole—enhances natural range of motion, encourages a smooth, efficient stride & helps maintain stability. The 3.0 has the most flexible outsole which allows it to flex into multiple directions. Ultra-Low Profile The Nike Free 3.0 offers the most barefoot-like feel of the Nike Free family. The ultra-low midsole features a 4mm offset from heel to forefoot height for an incredibly flexible, natural ride. Sock-Like Fit An inner bootie hugs the foot for a snug, secure fit. Its made from ultra-breathable engineered mesh that provides a dynamic, sock-like fit yet still allows for easy on & off.