Mizuno SS15 Mens Wave Sayonara 2 Running Shoes - Cushion **NEW** Improved Midfoot Fit - Extra material in the midfoot area provides a greater fit for superb comfort. U4iC Wave Midsole - Providing an amazing cushioning to weight ratio. InterCool - A full length ventilation system in the sole, to reduce heat and humidity. SmoothRide - Ensuring a more fluid enjoyable run, due to Flex grooves in the heel promoting natural movement from the back of your foot to the front. AIRmesh - Breathable AIRmesh upper ensuring your feet stay cool.