The Armstrong Ultra High Aspect foils are engineered for riders who want to do more with less wind. Minimal drag with explosive acceleration and glide that seems to defy the conditions. Threading the bumps has never been easier. Staff Take: "The Ultra High Aspect foils are an efficient weapon — dialed glide and pump with minimal resistance and quick acceleration. The slower roll rate feels locked in when carving, but tips-out is no issue." — Aeron Staff Take: "The UHA570 has so much low end it feels like I'm on a 780. Pumps really well but still turns without much hesitation." - Tom