Supacaz Fly Cage Poly Flaschenhalter - Red

Firm, plastic material, holds bottles securely in place. Even bigger bottle (600ml+) fits just fine inside, including metal thermal bottle. The only thing to consider is not to overtight the screws because they easily go into plastic material. Consider using some underplate for screws. Because of "two part" body best is to hold it while tightening the screws, to stop from moving cage around. Neon blue color almost perfectly matches my bike.

The cage looks good, the bottle goes easy inside and out, holding the bottle firmly. It is a pleasure to use this product.