I used these neoprene booties every day I paddled around Florida. They are comfortable, and will keep the feet warm, however, I would advise using them with neoprene socks as keeping the bare feet in them all day will cause blisters on the heels. Also after two months of continuous use, the rubber around the ankles started to split and break, so they are a one expedition use then throw away kind of item.
You can see a Youtube video from Rapid Paddling Magazine describing the boot.
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