This is the ASICS Magic Speed 4. I've run about 100 kilometers in these, mainly in races. They're lightweight and easy to handle, with no quirks, so I especially recommend them for those running around 4:30 per kilometer, or for those considering buying carbon fiber shoes for the first time. These are track and field shoes featuring a breathable mesh upper and a red rubber sole. - Brand: asics - Color: Neon Yellow - Sole: Red rubber sole - Design: Breathable mesh upper - Use: Track and field Thank you for looking.