Rec Specs Challenger XLDefend Vision with Challenger XL Protective Rx Eyewear for Athletes of All Ages. Challenger XL provides the largest available eye size for peak vision performance. New Temple Padding for additional protection and comfort to accommodate the XL eye size. Over mold and Sculpted Temple offers comfort and a head hugging design and the Patented Eye Rim Assembly features an impact rated lens retention system with a wide Rx range. Sizes: Wide [A: 60 B: 41. 5