220Yupoo New Balance FuelCell Yupoo New BalanceYupoo NB series ultra-lightweight low-top casual sports jogging shoes are made of ultra-light and breathable 3D knitted mesh material structure upper and printed logo details. The midsole is embedded with FuelCell lightweight technology combination. The mesh upper design is sporty, refreshing and breathable, and barefoot feels contrasting colors. Surprisingly detailed design, the FUEL CELL shock-absorbing midsole is created by quickly filling liquid nitrogen into the foam to create a highly elastic, lightweight and durable midsole. Product No. MRCXBK3 Size 36 37 375 38 385 395 40 405 415 42 425 43 44 45