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Well... Kudos for creativity. 😁 The SHOWA 3416s are made of the same material but still leave enough room for undergloves... While still allowing use of your individual fingers. I haven't dived a warmer glove setup... Not even mittens. 😁

After much research, deliberation, and finally a call to SHOWA, I'm happy to report... There is no difference. The 720, 720R, and CS720 are all the same glove. Nomenclature has been changed from place to place for marketing reasons and to signify certain ratings. When the glove gets a new...

Haha... It's happened before. Here's a video of what happened... From my point of view. Be sure that your sound is on. Please like/subscribe/share and all that stuff. https://www.facebook.com/watch/?v=394415771911083

SHOWA 3416s... Sealless and cosmetic-ring-less... Used in our latest video from this week. Enjoy!

No, but you'd load SHOWA 3416s the same way that you'd load SHOWA 660s. This seems to be the preferred method: You'll find 3416's to be softer, easier to load, tougher, warmer, more dexterous, and more tactile (feel through them) than 660s - which are a relatively thick, stiff glove...

I like being sealless... Donning and doffing is easier and there's no tubes or strings to worry about. I've holed a glove set up like that before... I bumped my hand against a chainsaw blade (it wasn't running) and put a tiny leak in my SHOWA 3416. It was the very first time (and only time)...

UPDATE After another season of diving the Ultima Dryglove Ring System combined with a set of SHOWA 3416s, I've discovered a new modification that I really, really like: Doing away with the cosmetic rings. My rings take some abuse from working... And every four or five dives I had to replace...

Hey Simon! Great to see you here from our YouTube channel. Here's the video where I create "sealless" Ultima rings: To clarify, indeed Zef is right ... The seal is still technically there and needed for the system to seal properly... It's just trimmed all the way back. You'll see what I...

I think I've hijacked this thread. Sorry. :D We should probably start a new one concerning hot water solutions.

That's interesting. Still seems like I'd need to bring additional machinery, but circumventing the need for propane and still having a decent flow rate would be nice. Got a link?

...And why, when I have a big, giant source of heat already in the truck with me?

Nice, but I can't see it doing much good in a truck that doesn't get plugged in. I guess I could power it off of the inverter and only run it when I'm driving - assuming that the inverter and alternator could keep up - but even then I'd be looking at six gallons of hot water, tops. I typically...

Yeah, not that I want to put that down... I mean, ANY water warmth would have been great. ...But at 1.32 gpm, it'd be just a trickle... And there'd be a lot of setup, breakdown, and storage... Not to mention having to keep a couple of propane tanks with me at all times. Yeah - why, when I...

Yeah, I've considered that and things like that... The closest thing that I came up with was a camper or portable instant water heater like the Eccotemp L5 or L10. The thing about these units - I wouldn't exactly call it a "problem" - is that they run on propane. That means that I'd always...

Yeah, that's not 100% the same system, but it's using the middle heat exchanger as part of it. The differences are: 1. This guy has no input to begin with... He's using a lake or a pond, and a water pump. My system will use a garden hose inlet at first, then a reservoir with a pump later...

It will be. I'll keep y'all posted.

Sure. This is a photo of various heat exchangers made by the same company. The one on the left - the largest and highest-preforming one - is the one I'm getting. In short, it goes inline with my truck's heater core, in the engine bay. A hose goes from the engine into the heat exchanger, and...

Aside from bringing a spare neck seal (and spare gloves), I am arming myself with another cool new safety net: A heat exchanger. ...So I'm robbing my boat of a device that attaches to my truck's engine's heater core. It sits in the engine bay rather unassumingly. It has a garden hose inlet...

Hahaha... Yes, absolutely... And indeed I now carry a spare neck seal in my truck. It's been a LONG time since I've dived cold. I forgot how much it sucks! I did that for many years - dove wet year 'round for work. Today I'm dry and snuggly and get pissy if I get a couple of drops to leak...

Bwahahahaa... Two hour drive to dive site to recover the guy's engine cowling. $1,000 on the line for an emergency job that has to be done *right now.* I make the drive and go to don my drysuit (equipped with sealless Waterproof Ultimas and SHOWA 3416s) and guess what? My neck seal is a...