What do you get when you take an iconic tennis shoe from the 1970s, reinvent it at the House of Yves Saint Laurent, and then add wheels to the bottom? A four-wheel roller skate thats reminiscent of those scuffed rentals at the skating rink complete with a stopper on the front but with chic black-and-white leather color blocks that scream modern French design. While the skates are simply YSLs high-top tennies on wheels, they are rolling out in small numbers as part of the fashion houses 2013 Fall/Winter Collection, and are available only at YSLs American flagships in Beverly Hills and New York. Naturally, limited editions of a childhood obsession, at $1,150 a pair, are made for the most discriminating of skaters those who have long eschewed the late 1990s fad of rollerblading in lieu of a more sensible way to glide across the earth. Rumor has it that YSL creative director Hedi Slimane wears a pair around the Paris showroom, casually zipping from rack of slender-cut suits to tables of elegant silk ties. Which is all fine, but how well do these hokey-pokey?