The Quantum is the world’s only shoe tailored for the sport of footbag (Hacky Sack). Similar to the now discontinued Adidas Rod Laver the Quantums are designed with a lightweight sole and big kicking areas, the Quantum is sure to elevate your game. The instep area of the Quantum sole has been given a unique curved shaping and seamless sole-to-fabric transition. Also the “brocut” area is thin and deepened for a greater ankle crank. The toe box area is bigger than ever and an extra hole is punched for your individual lacing needs. The shoe is completely manufactured in the Czech Republic with the use of materials produced entirely in the European Union (Spain, Italy, Germany). EnergyQ is the material technology used for the single density sole that delivers cushioning and elasticity. The outside kicking surfaces are made of high quality fabric, cowhide leather is used for the heel, toe and lacing components, and breathable cloth material for the inside of the Quantum shoes.
 
The weight of a EU size 42.5 is 9.8 ounces.