Polycarbonate construction gives the Fly Poly Cage from Supacaz a combination of light weight and impact resilience that works across road, gravel, and mountain applications. At 26 grams, it sits in weight-conscious territory without the price tag of carbon alternatives, and the material bounces back from the incidental contact and drops that would crack more brittle cage designs. The minimalist structure keeps the aesthetic clean while the LockTight Wings provide the retention force that actually matters when roads turn rough or trails get technical.

Those wings flex just enough to allow smooth bottle insertion and extraction while maintaining positive grip on your bottle through washboard gravel, cobbled sections, rough pavement, and trail chatter. The angle is calibrated for one-handed access without fighting the cage or fumbling during efforts when you need hydration but can't afford to lose focus on the road ahead. Full bottles stay put; empty bottles don't rattle. The design works equally well with standard cycling bottles and most insulated options, accommodating the range of bottle shapes riders actually use without requiring excessive force to seat the bottle or extract it mid-ride.

The reduced spine design positions the bottle securely with bottom and indent tabs that keep things stable over time and across varying bottle profiles. Recessed mounting zones accept the included bolts for clean installation that sits flush against the frame, and the laser-etched logo keeps branding subtle rather than demanding attention. The polycarbonate resists UV degradation, so colors stay sharp through seasons of sun exposure rather than fading to washed-out versions of themselves. Standard two-bolt mounting fits any frame with bottle bosses, and the included hardware means you're ready to install without hunting for spare bolts.