These sturdy, yet flexible PVC safety goggles have a polycarbonate lens will help protect your eyes during that next messy science experiment. Theyre impact resistant (though not break-proof, so dont try anything too crazy!), and have ventilation on the top and sides that should keep them from fogging up. Available in adult (which should fit junior high and up) and junior sizes (which are pretty small, probably best for elementary students. Elastic is adjustable for a tighter fit.