Callisto SleepSync™ Color:black This makes it extremely versatile

This makes it extremely versatile and very suited to road running

NyTrex® HD lenses offer clarity and enhanced depth perception

Available with or without prescription

Mostly suited to running but can be used for other sports

Current mood: Sitting outside a Parisian café casually oozing mystery

Callisto SleepSync™ Color:black This makes it extremely versatileMetal frames with super strong light blocking lenses. These red lenses block both wavelengths of light that impact sleep, blue and green. Recommended to be worn two hours before bedtime if using screens, you'll noticeable fall asleep easier. These glasses promote a deeper and more restorative sleep, aiding recovery and increasing morning alertness.