Kevin Kalkoff’s first signature Penumbra seat is sure to impress! Dressed IN PU leather with debossing to resemble classic seats of the past. If you’ve see Kevin ride you know he attacks everything at full speed, so he wanted a slim and ergonomic design that allows maximum movement on the bike. A subtle seat that looks great, with an amazing shape for riders that rip like Kevin who are looking for a more slim and out of the way design.