Technical Information The Stacker Series is packed with unique features developed over the past 30 years to make it one of the most unique and powerful recreational kites on the market: Chikara Ripstop Nylon Fabric Like any good woman, the Stacker series knows what it wants and that’s only the very best that money can buy. Unique amongst the Flexifoil range, each Stacker is produced using the finest Chikara ripstop nylon fabric to provide optimum performance and excellent durability. Multi Tapered Flexible Spar True to the original design from 1972, the Stacker series contains a removable spar to maintain the very best shape and ensure the most efficient flight through the air. Constant Flexifoil innovation however now means that this is produced from the very best carbon rather than the cane spar of yesteryear. Quick and Easy Construction At Flexifoil we know from our own experience that once the wind picks up, everyone wants to kite as quickly as possible. With this in mind we’ve designed the Stacker series to be fast and easy to put together through simple features like our spar grip connectors.