Medium-XX-Large Showing the single result Default sorting Sort by popularity Sort by average rating Sort by latest Sort by price: low to high Sort by price: high to low Sort by editor review Added to wishlistRemoved from wishlist 0 Add to compare Polar OH1 + Waterproof Optical Heart Rate Monitor with Swimming Goggle Strap Clip and Armband – HR Monitor with Bluetooth, ANT+ Added to wishlistRemoved from wishlist 0 Add to compare $59.85