Size 4.5y - Nike Air Max 90 (GS) Infrared gray Black 2013 (307793-080) The Nike Air Max 90 GS in infrared gray black is a popular sneaker for walking and other athletic activities. The shoe features a lace-up closure and leather upper material, making it durable and comfortable to wear. It was first manufactured in 2013 and is part of the Nike Air Max 90 product line. The shoe is available in size 4.5y and is suitable for boys.