Native shoes are great for weekends, water play and playgrounds! Native Jefferson shoes are light, easy to slip on and easy to keep clean - not much more you need in play shoes! This Canadian brand of kids shoes mainly comprises of injection-molded EVA shoes. What is EVA? The common name for ethylene-vinyl acetate. Think of EVA as the spring in your step. The natural characteristics of the material make it great for footwear because it molds to your kids' feet.