Protective Eyewear Liberty Sport Rec Specs Maxx 31 glass lens Meets or exceeds ASTM F803 impact resistance for Basketball, Handball, Paddleball, Racquetball, Soccer, Squash, Tennis. Brand New - Factory Packed, comes with semi-rigid case and double slide adjustable strap. Back cushion provides additional cushioning along the top and bottom of the frame. Unisex Shape. Prescription Protective Sport Eyewear - Prescription available through your Local Optical Retailer.