The Fischer Soma Vacuum RC4 100 Jr. a vacuum race boot for kids! It gives the junior racer all the advantages of Fisher's revolutionary new Vacuum Process. The Vacuum RC4 JR is lighter, doesn't change flex dramatically in the cold, and most importantly gives perfect alignment with a proper footbed of course. Oh, and its comfortable. When it's outgrown it can be passed down to a younger sibling and be remolded. Remember that even though it's a '100' flex, the Vacuum RC4 100 Jr. will feel softer because it doesn't get stiffer in the cold. If you race to win, the Fischer Vacuum RC4 100 Jr. will help get you to the podium.