Springy, full-foot cushioning puts runner-tech comfort under every step in a sneaker made for kids who like to play and relax with grippy underfoot support. It's made with Parley Ocean Plastic® that recycles shoreline trash into materials for sporty footwear. 1 1/4" heel; 1/2" platform (size 3.5) Cushioning: absorbs impact and distributes weight for consistent, buoyant comfort under each step Primeknit upper wraps every step in flexible, ultralight support Boost™ foam sole provides responsive heel-to-toe cushioning Continental™ Rubber tread ensures reliable ground grip in wet or dry conditions Textile, recycled textile and synthetic upper and lining/rubber and synthetic sole Primeblue products contain high-performance recycled materials made in part with Parley Ocean Plastic Imported Fibers made from Parley Ocean Plastic are sourced from upcycled plastic waste intercepted from remote islands, shorelines, waters and coastal communities