Puma | Shoes | Puma Mens Neon Yellow Velocity Nitro 3 。The Puma Velocity NITRO 3 is a versatile, neutral daily trainer designed for a wide range of runners and distances, from short jogs to long runs. The shoe features Puma\'s NITRO foam cushioning technology, which provides a soft, responsive, and lightweight feel. The midsole is a dual-density foam with a softer NITRO foam layer on top and a firmer EVA layer below for enhanced durability and stability. The outsole is made with PUMAGRIP rubber, offering excellent traction on various surfaces, including wet pavement, gravel, and light trails.