F4 has been working on developing low speed wings and foils for Surf and Downwind stand up paddling. We have applied similar concepts used on our kite and windsurf foils to deliver the next generation of hydrofoils for surfing. Theses foils uniquely combine early lift off, turning, and forgiving breach response. We developed a series of thicker and thinner wing profiles to achieve a balance of speed and turning. This has resulted in a range of foils for ripping tiny waves as well as charging 20+ surf. We designed the foils for excellent control across the speed range. The last thing you want is for your foil to get wobbly at the upper end of the speed range when flying down a raging monster.