Kelvin Hoefler X Powell Peralta Collaboration. G-SHOCK collaborates with pro skater Kevin Hoefler and cult skate brand Powell Peralta to design the 5600KH-1 watch. The strap and case back feature design details of Olympic skateboarder Kelvin Hoefler, while the Powell Peralta logo lights up with the LED light. Shock-resistant and waterproof up to 200 meters, this watch also offers other technical gadgets to make your everyday life easier.