Cyclist Tom Dumoulin is wearing an aerodynamic cycling bpdysuit for the Tour de France bicycle race this year. Researchers at Netherlands' Delft University of Technology used 3D printing and wind tunnel technology to create the piece of athleticwear.
Dumoulin spent 30 minutes riding a stationary bike while 150 DSLR cameras continuously photographed his movements from various angles in order to develop the bodysuit. The team of researchers then created a 3D printed model of Dumoulin on the bike from the images captured by the cameras.
The 3D printed model was built in eight parts so researchers could manipulate the model as they needed and to adjust the bodysuit on the model. The bodysuit-fitted 3D model was placed into the wind tunnel to test for how much drag the suit created. This process was repeated until the team found the perfect bodysuit with the least amount of drag.