Better hope the bladders don't blow. Used to happen a fair amount.on certain models a few years back. The Reeboks are allegedly built off the old Tacks platform so it makes sense they would fit. I thought the boot internal padding etc is different now to accomodate the pump. Problem is on lower models without the pump the boot fit can be sloppy as its the same build just no bladders and you know they aren't spending a lot of effort on low end boots. Don't have them anymore, but had an old pair of pump tacks back in the day. So it makes sense its the same boot concept. Atleast that was the story two years ago. The pumps cute it fits you.