Oakley - Holbrook XL - Grey Smoke /Prizm Sapphire Polarized Sutro Lite - Polar Loop Crustal

- Polar Loop Crustal

An easy locking mechanism keeps your compatible device secure while you’re underway

The extra interference-preventing electrodes on the strap make it extremely sensitive to your heart’s electrical signals

- Light Conditions Changing Conditions

Compatible with all Polar sports watches

Oakley - Holbrook XL - Grey Smoke /Prizm Sapphire Polarized Sutro Lite - Polar Loop CrustalThe look of Holbrook, from its iconic style to keyhole bridge and metal rivets, has been scaled up to fit larger faces. FEATURES: Durability and all day comfort of lightweight O Matter frame material Three Point Fit: Comfort and performance that holds lenses in precise optical alignment Frame suitable for medium to extra large faces Same lens proportions as the original Holbrook, available in a larger size Prizm lenses enhance color, contrast and