Originally Posted by
Giri
Emphasis on short arms and long trunk, Mark. Once the insole is removed from Chucks, it's just 2~3mm of decently hard rubber sole between the heel and the floor. Even if it compresses under the load, it will be a tiny fraction of the original 2~3mm thickness anyway. So force transmission isn't much of a problem. But the surprising thing is the arch support. Typical Chuck Taylors have simple hard rubber inserts at the side of the arches. Probably they don't mean much under regular use but once half inch insole is removed, it feels like a snug groove for the foot arch to fit into. Not elegant, but works.