The Supacaz Fly Poly bottle holder is designed to maintain maximum functionality with a clean and minimalist form. Its construction ensures stable and secure bottle retention, as well as easy access to it. Supacaz emphasizes that this holder is suitable for all cycling conditions, regardless of the circumstances. The holder is made of polycarbonate, making it weather-resistant, durable, and most importantly, lightweight. The manufacturer's logo is laser engraved on the holder.