Poc do half blade sunglassesthe poc do half blade sunglasses have been designed specifically for road cyclists as they are constructed using injection moulded grilamid they are very lightweight durable and flexible this flexibility enables you to easily change the lenses to suit the riding conditions the do half blades also feature a hydrophilic rubber nose piece and rubber inserts which keep them securely on your face unrestricted viewyoull also enjoy an excellent unrestricted field of