I purchased these through Amazon warehouse for a significant savings. I have 16" Chippewa Engineer boots, they are made of a heavy leather. I purchased these boot trees rather than cheaper plastic ones because the leather is so thick. I wanted to preserve the shape of these expensive boots as well as increase their longevity. I was concerned about these trees being large enough for the shaft of the boots. The spreading mechanism is adjustable. The eyelet / eyebolt is threaded and by untheading the halves from each other they expanded. After a little trial and error I achieved a perfect fit and I was able to slide them in with a snug fit. They have a pleasant cedar odor and I expect them to work wonderfully. They seem plenty sturdy enough for their intended use. I suppose they could do some light stretching if you used a liberal amount of stretching fluid on the leather first, but I think it would be easy to over stress the connector on the trees.

Beautiful cedar boot trees with quality metal hardware. Worth the price if you're trying to keep expensive boots upright. That said, there is a weakness. These would work perfectly if I also didn't use shoe trees to keep the foot box of the boots in shape. The issue is the rear portion of the shoe tree blocks the bottom of the boot trees from fitting into the heel of the cowboy boot, thus making the tree not a true fit. I rest them in the boot to keep the boot upright, but they aren't "fitted". I'm still glad I have them.

I love the sturdiness of these, plus there is an easy workaround when using in conjunction with shoe trees. I simply place the metal top of the boot tree in the forward heel cut of the shoe tree (metal top can also be removed entirely), tucked just under the front of the shaft and start of the boot, ensure they're snug with the shafts of my boots, and turn them upside down. When I go to put them on the next day, the boot trees are still snug against the shafts, and I find storing the boots upside down
to be better for the shafts in my experience.

These boot shapers are beautifully constructed from naturally aromatic cedar. The smooth, sanded wood prevents new boots from developing painful creases that dig into lower legs. They allow boots to dry naturally.

So I have really large calves and I could not zip up these boots without pants. After 24 hour in theses trees (which by the way smell great) I was able to zip them up with pants on!! I love my boots and I don't have to return them now!