Anyone can carry their skis with this system. I tested it with a pair of full length skis in my wheelchair and had no problem moving around at all.
The carry position lets you use crutches or sticks as well without the skis interfering with your arms or bouncing on your back. There's also a snowboard strap set.
There's really not much else to say about these, other than why did it take so long for someone to do it?