Sharp Kayak Folds Aluminum Sheet into Unsinkable Hull with Cork Seat

A new press brake machine and a landscape surrounded by lakes inspired the creation of Sharp, a kayak designed by Guillaume Bloget during his residency at Rhizome in France's Morvan region. Crafted from folded aluminum sheet and cork, the project emerged after the workshop acquired the machinery necessary to shape metallic hulls. Rather than mimicking the traditional shapes of molded plastic or composite kayaks, this design turns the folding technique itself into both the primary structure and the core aesthetic.

The hydrodynamic hull was perfected through an iterative design process involving half-scale models tested directly in water prior to building the full-size version. The resulting geometry features sharply faceted surfaces above the waterline while maintaining efficient movement beneath the surface. Notably, no internal frame is required to support the vessel.

Stock photo for illustration only, not from the actual event

Instead, stiffness is achieved entirely through precision folding, creating a double-wall construction that inherently makes the kayak unsinkable. Creases function as ribs and surfaces act as structural members. On the outside, the polished aluminum skin catches and scatters reflections from the surrounding water, causing the visual appearance of the kayak to shift continuously with changing environmental conditions.