I can't vouch for Land's End, but I did purchase LL Bean's Coastal Clogs for $20.00. They fit, so I purchased them!
I had tried on crocs, but the small was to small and the medium too large. I happened to be in LL Bean purchasing shoes for my kids, saw them, tried them on, and when they fit like a dream, purchased them!
The first time I wore them for an extended period, they weren't the most comfortable (I have wide feet and need a bit of arch support). But now that I've worn them over a month they're felling better all the time.
Besides, I loved the purple color - it's not the bright one of crocs, but a nice eggplant color.
Hope this helps!