Features Integrated raincover LightWire(TM) frame AirScape(TM) backpanel Stow-on-the-Go(TM) trekking pole attachment External Hydration Sleeve Description Product Description Perhaps our most versatile series of packs, the Kestrel / Kyte series are light, clean and highly functional – the elusive quiver-of-one packs that do it all. We’ve updated their looks to be sleeker, without losing the lines that give them that classic appeal.