In this video I review the Wettie Warmaz (Wettie Warmers) heated kidney belt — a fully wireless, waterproof heating setup you can run under a wetsuit or a drysuit. I don’t usually do unboxings because I don’t want to recommend anything I haven’t used a lot, so I filmed the unboxing, then went away and tested it properly before finishing the review. The big idea here is simple: no wires, no battery connectors, no plugs to corrode — it charges wirelessly and it’s controlled by a sealed magnetic wrist switch. After more than a month of real diving (shore, boat, caves, tech, rec, sidemount, backmount, freshwater and saltwater, wetsuit and drysuit across multiple states), it worked exactly as advertised. What I love most is the “don’t worry about it” factor: I rinse it, dry it, slap it on the charger and I’m done — the same level of fuss as my fins. It’s also one-size-fits-all, so my 11-year-old can use it, then I can grab it straight after. If you’re trying to stay warm without the drama (and failure points) of traditional heated vests, this is the most practical solution I’ve used.