Takeyoshi Altitude Master Tortoise/D+ Blue Mirror Suppliments the next-generation optical heart rate

the next-generation optical heart rate sensor

5" they hit the goldilocks zone for length and with the reflective hits you'll be visible to everyone on the road

Pinches and Unblinking Eyes

and we're all about it

Takeyoshi Altitude Master Tortoise/D+ Blue Mirror Suppliments the next-generation optical heart rateDistrict Vision offers up a frame for outdoor activities, prepared for anything situation you might find yourself in. The ergonomic 8 base frame design allows for full coverage whilst the temple design has been architected for the best interface with helmet use. Titanium cores in the arms allow for a lightweight yet strong frame which will stand the test of time. 8 base curve shape Acetate frame [titanium arm core] Temples designed for use w helmet