This review is strictly directed to the fit of the Reebok Men's Rapid Response.  I purchased this boot sight unseen (my bad) due to the fact that I own a pair of these boots that were previously made by Converse...... and I LOVE THOSE BOOTS!!!  However, after Reebok purchased that division of Converse, they changed the design of the insert as well as the material of the shock absorbing system underneath the insert.  After receiving the boot, I promptly put them on and started trying them out. The knot underneath my heal was uncomfortable the second I stood up.  Much like standing on a not so squishy ball.  I took the boot off removed the insert and compared the old insert to the new insert.  The shock absorber built into the heel sticks up a good 1/8 of an inch above the rest of the shoe and on top of that is a Reebok insert that also has a raised pad on the heal.  I thought for sure that Reebok knew what they were doing so I put them on the next day and went to work expecting my feet to become accustomed to the raised padding.  That was a sad mistake.  My heels hurt for the following 4 days.  I have since removed the inserts and purchased Dr Scholls inserts to try and undo what Reebok has screwed up but it has only helped a little due to the raised shock absorber.  I've owed Reeboks before and have never had any complaints from their products...... but they really blew it with this one.  It feels as though you are walking on one of those palm sized hard red rubber bouncy balls.