Breathable mesh upper. The solid rubber outsole and medial wrap enhance the durability of the shoe. FF BLAST cushioning technology provides a responsive and energetic run with softly cushioned impacts. The geometric design of the sole, together with the midsole, ensures an energetic run. The flexible upper material has been completely renewed and fits snugly around the back of the foot. The collar and tongue are softly padded, and the grippy outsole with a wrap-up design lets you run around effortlessly or train for your next race. Highlights of the Novablast 4 GS from Asics: Upper made of technical, stretchy woven material sits comfortably on the foot, is breathable and ensures a pleasant shoe climate. Midsole made from responsive cushioning foam for a light, springy ride with a gentle rolling motion. Improved geometry of the outsole makes the running experience stable and supple. Soft padding on the edges of the shoe and the tongue increase comfort. The outsole is grippy and durable. Fun at speed! Light training sessions or just having fun outside with your friends - with the Novablast 4 for young feet, you have a versatile running shoe on your feet that won't disappoint and will inspire you with its beautiful style. An all-rounder that has it all!