The Dye Precision i4 Goggle System is the smallest profile, lightest, and best field of vision goggle system available. The thermal lens leads the industry in optical clarity and provides a distortion and fog free field of vision regardless of weather.Dye's proprietary dual stage foam combines open and closed cell foam technology. Dual stage foam is specifically designed to 'sheet' sweat and moisture away from your face, providing an undeniably resilient boundary between your eyes and perspirationThe i4 features an industry first compound radius lens with thermal technology, giving the player the ultimate vertical/ horizontal peripheral vision. Dye thermal lenses provide theDye's proprietary dual stage foam combines open and closed cell foam technology. Dual stage foam is specifically designed to 'sheet' sweat and moisture away from your face, providing an undeniably resilient boundary between your eyes and perspirationThe i4 features an industry first compound radius lens with thermal technology, giving the player the ultimate vertical/ horizontal peripheral vision. Dye thermal lenses provide theThe i4 features an industry first compound radius lens with thermal technology, giving the player the ultimate vertical/ horizontal peripheral vision. Dye thermal lenses provide the bench mark for anti-fog performance. All Invision lenses provide perfect optical clarity and set the standard for visual performance.The i4 features an industry first compound radius lens with thermal technology, giving the player the ultimate vertical/ horizontal peripheral vision. Dye thermal lenses provide theThe i4 features an industry first compound radius lens with thermal technology, giving the player the ultimate vertical/ horizontal peripheral vision. Dye thermal lenses provide the bench mark for anti-fog performance. All Invision lenses provide perfect optical clarity and set the standard for visual performance.The i4 offersThe i4 offers unmatched peripheral vision. This added vision makes movement easier to recognize, providing a distinct tactical advantage for users. In addition the i4 goggle comes standard with HARDCOAT, a scratch resistant coating that protects both sides of the lens against scratches and minor abrasions. The included UV coating also provides exceptional protection from the sun's harmful rays.It also has a revolutionary patent pending rapid lens change system, allowing lens changes in ten seconds or less. It is as simple as pushing on each interior tab arm and then sliding them forward, instantly freeing the i4 lens for replacement.Its precise blade angling and proven venting configuration allow heat and moisture to dissipate quickly. Scream Multi-Directional Venting makes communication with teammates effortless by carrying your voice farther.Tiger Teeth buckles allow you to adjust your Invision woven rubber strap for a custom fit. Tiger teeth are designed to bite down and secure the strap during rigorous competition.