The original I/O was the first goggle to solve the problem of what to do when changing light and weather demanded different lenses

- 2-way air ventilation

X14 Alloy� for more precise weight distribution 3Fusion� End Cap optimizes sweet spot

All While Keeping It Piping Hot Or Ice Cold And Fitting Comfortable And Conveniently In Your Hand Or Your Vehicles' Cup Holders

BBCOR Certified - Approved for High School and Collegiate Play

New Other Mizuno Prospect Batting Helmet Softball OSFM Youth 6 1/2"-6 3/4" Navy New Never used! The original I/O was theThis is a New other, has some marks from storage. Mizuno Prospect Batting Helmet. New with tags, this is an awesome batting helmet! Includes installed facemask for added protection. Its one size fits most helmet! Features Dry Lite technology! NOCSAE Certified. Strategically placed ventilation holes, Unique Matte Finish. Durable ABS plastic shell