Puma | RS-X3 PLAS_TECH Shoe Size (UK):7 The shoes are made of

The shoes are made of crocodile-embossed leather from an Italian luxury leather supplier

Not to mention the oh-so comfortable construction that'll make you feel as though you're running on clouds

we didn't look down at our feet or the road

And that's exactly what the X3 is

While the upper maintains its original eyelets with premium and clean overlays

Puma | RS-X3 PLAS_TECH Shoe Size (UK):7 The shoes are made ofThe X stands for extreme. And that's exactly what the X3 is. It goes beyond the expected, takes conventional wisdom and chucks it away.. Semi translucent hot melt overlays on a mesh upper add to the style and make it clear that this is a shoe that definitely lives up the extreme label.