Shop the Bisphaera Sports Eyewear collection at Specsmart — a premium range of performance sport and outdoor glasses designed for active men and women. Bisphaera frames are engineered for the demands of outdoor activity — combining lightweight, impact-resistant construction with a secure wraparound fit that stays in place no matter how intense your session gets. Every Bisphaera frame is fully prescription-ready, making them one of the UK's best options for prescription sports glasses. UV400 protection is included across the entire range, shielding your eyes from harmful rays during every outdoor adventure. Try your favourite Bisphaera styles at home for free with our home trial, or get expert advice via WhatsApp or our free 1:1 online consultation. Free UK delivery and lowest prices guaranteed.