ポディウム® フロー™ 2 ウェストパック 21オンス ポディウム ダートシリーズボトル付き

The bottle cage on this waist pack actually holds the 21oz bottle tight over rocky descents, no rattling at all. Wore it for a two-hour ride and almost forgot it was there.

Rode a quick hour loop with this and barely noticed it was there. The bottle stayed put in the holster even on rocky descents, and the waist belt didn't bounce at all.

Took this on a couple of short trail rides and barely noticed it bouncing around, which is exactly what I wanted. The 21oz bottle sits snug and doesn't rattle, though I do wish the waist strap had a bit more padding for longer days.