If you mean how does the heat molding work - if it's anything like their speedskates it's a case of removing the fittings then popping them an oven a low temp (100 I think) for 20 mins then gritting your teeth and popping your bare feet in them.
You can also use a hair dryer or a heat gun, but it takes more care with the later and you can wreck them if you are hamfisted.
If you mean how does the heat molding work - if it's anything like their speedskates it's a case of removing the fittings then popping them an oven a low temp (100 I think) for 20 mins then gritting your teeth and popping your bare feet in them.
You can also use a hair dryer or a heat gun, but it takes more care with the later and you can wreck them if you are hamfisted.