These are the Nike React Infinity 3, known for their excellent cushioning and durability. I'm selling them because the Infinity 2 and 4 models work well for me, but the 3 doesn't fit. They've been used for about 200km, so they still have plenty of life left. - Color: Blue-purple - Brand: Nike - Model: React Infinity Run 3 - Sole: Cushioned sole - Design: Mesh upper