Kai Lenny Makes Backflips Look Routine on Maui Foil Session

Kai Lenny made backflips on a strapped SUP foil look less like a stunt and more like a normal part of a Maui surf session. At Guardrails, he rode a SUP foil board in the surf after not doing so for a while, then showed the kind of control and wave-reading that makes average conditions look open-ended instead of limiting.

What stands out in the clip is not just the rotation. It is how early Lenny gets moving, how cleanly he links into swells, and how little hesitation there is in the setup. Lenny said he picked up a 9-liter Super K from KT Foiling and that it felt magic. He also said the board helped him get onto swells early and avoid shallow spots, which gets right to the practical part of the story for foil surfers watching board choice, volume, and takeoff behavior.

That is why the session lands as more than a highlight reel. On a board with straps, backflips in surf signal a sport that has moved well beyond the old idea of foil boards as just downwind tools or cruising machines. Lenny made the maneuver look routine because the whole system around him was working: board fit, foil control, balance, timing, and the ability to read a wave before it turns into a problem. For SUP foilers, that combination matters as much as the aerial itself, because early lift and efficiency often decide whether a marginal wave becomes a make or a miss.

The clip also fits a bigger pattern in Lenny’s foiling progression. In November 2024, he injured himself trying a backflip on a foil board and took a chest gash from the foil after coming down awkwardly. In 2023 at Pe'ahi, his backflip was notable for the wrong reason too, since the line he chose sent him back toward the dangerous part of the wave instead of away from it. The new Maui session showed a rider who has kept pushing that ceiling while cleaning up the execution.

KT Foiling’s Super K 2 adds another layer to the story. The board was redesigned through extensive prototyping, rider feedback, and advanced construction, and the brand says it is built for multiple disciplines, including SUP foiling in larger sizes. It also says the line was inspired by Kai Lenny’s big-wave guns and earlier Dragonfly iterations, while its board range runs from 30 to 120 liters across Super K 2 variants. With Lenny on the team page, the gear and the rider now look tightly linked, and the clip makes the point plain: foil performance has advanced to the stage where the right setup can turn ordinary Maui surf into a platform for moves that once looked out of reach.