100% Strata Nation Goggles Features: Simplicity – The most advanced form of simple. Sharing the same features as the adult goggle. Fitment – Curvature suited for comfort and specifically developed for youth. Foam – Comfortable, Dual-Layered face foam soaks up sweat. Lens – Anti-fog, scratch resistant Lexan lens for unimpaired vision. Strap – 40mm silicon coated strap holds your goggles in place. Frame – Constructed out of flexible yet durable urethane featuring combined matte & gloss finish.