GV:
Beautiful!!! clever idea.......

A number of questions:
1. With the runners, it looks like pulling it in the fluffy powduh would be more difficult than a regular kids sled? In New England hardpack the runners would be OK--i.e. pulling the pulk on ski mobile trails.......
2. the ropes need to attach to your body? are you using a fanny pack? what about the PVC tubing or poles to keep the sled from catching up to you on the downhill?
3. How durable is the pack part? at least in my limited experience and skill, the bag takes a beating against vegetation, rocks, etc. when it is being pulled....
4. how comfortable is the pack on your back?

A