Training for a marathon is hard work, but the SuperComp Trainer v3 makes those runs more enjoyable. The Trainer v3 is built for the runner looking to enhance their runs and is designed to make the transition to the SC Elite v4 for race day seamless.  Product Details: FuelCell midsole foam with approximately 3% bio-based content delivers a propulsive feel to help drive you forward Energy Arc pairs sport-specific carbon fiber plate geometry with strategic midsole voids, designed to increase stored energy to deliver a higher amount of total energy returned. Angular midsole design reduces weight Outsole designed for superior traction 271 grams (9.6 oz) Soft, plush mesh upper for breathability and comfort Width: Standard Heel/Toe Drop: 6mm (40-34) Cushion: Soft Support: Neutral Product Name: New Balance Fuelcell Supercomp Trainer v3 Mens Running Shoes - Fairweather Blue New Balance Code: MRCX17A Option: UK Size 7 | US 7.5 | EU 40.5, UK Size 7.5 | US 8 | EU 41.5, UK Size 8 | US 8.5 | EU 42, UK Size 8.5 | US 9 | EU 42.5, UK Size 9 | US 9.5 | EU 43, UK Size 9.5 | US 10 | EU 44, UK Size 10 | US 10.5 | EU 44.5, UK Size 10.5 | US 11 | EU 45, UK Size 11 | US 11.5 | EU 45.5, UK Size 11.5 | US 12 | EU 46.5, UK Size 12 | US 12.5 | EU 47