UPR Internet / Mailorder Department
3545 S. Richey Blvd
Tucson, AZ 85713
UPR Pro Shop
4453 S Rural Rd (1/2 block south of I-60)
Tempe, AZ 85282
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The Perimeter Seal system is the latest technology from Racing Optics which allows for a tighter seal to visor, blocking out dirt, dust and water from behind the stack. The XStack™ is a stack of 10 laminated Tearoffs that are 2 mil thick each. The laminated technology creates a distortion-free optical lens. Each package contains 3 stacks of 10 Tearoffs for a total of 30 Tearoffs.