Sometimes, when jumproping or doing other impact activities in my barricade 4s, i find that my feet start to hurt. Doing those things in running shoes is out of the question via the nature of the movement, but the cushioning is sort of a problem. Wearing two pairs of socks doesn't solve the problem either...and with 3 I can't fit my feet into the shoes. Are there any insoles or inserts that I can put into the shoes? What about the shaping?