Is anyone making eVent bivy’s anymore?

Integral Designs makes an eVent bivy with a 70D bottom.

http://www.integraldesigns.com/

Correction, they make several eVent bivies.

Max,

I have a Integral Designs all event overbag and its a really nice Bivy but alas not made anymore, you do see them on gear swap from on occasion.

I am pretty sure Integral Designs and Rab still make eVent bivies. I am sure MLD would make you one with a silnylon floor if you requested it.

http://www.mec.ca/product/5022-263/integral-designs-event-microbivi-bivy-sack/

ID micro bivi at MEC … 147 dollahs

;)

"147 dollahs"

Canadian moolah.

–B.G.–

> Would love info.

Info: under cold conditions these can be sweat boxes, with lots of internal condensation.

Cheers

I would discourage getting a Si Nylon floor. In my experience with a old Gortex bivy with a waterproof nylon floor, most of the condensation I get is on the nylon. What little condensation I get on the gortex would be greatly reduced if the fabric was Event since Event breaths much better. I recently got a Event rain jacket it clearly breathes much better than my old Gortex jacket.

MLD does offer as an option an Event bivy with a Event floor. However if you are set on a Si Nylon floor call them. Maybe they will make it for you.

"info: under cold conditions these can be sweat boxes, with lots of internal condensation."

I have seen this the of comment many times, mostly from people that don't have or have never used an Event Bivy. When I see comments from people that use Event bivys I always see statements that condensation is not an issue or that they have never had condensation. However I have seen a lot of post from people the DWR only ivys complaining about condensation.

When I was growing up my dad did purchase a 3 person Early Winter Gortex tent. At this time it was the original version of Gortex that breathed better than todays Gortex. That version of Gortex had issues with body oils contaminating the fabric that would cause it to stop breathing and sometimes leak. Gor Solved that issue but the end result was that they also reduced its breathability. Anyway, when my dad, brother, and I slept in it we frequently zipped up the vent to mostly or fully closed. We never had any problems with condensation. We were hiking in the very wet Washington Cascade Mountains.

David Miles sells the Uber bivy and has stated on Backpacking light that if you have condensation return it. He makes the bivy top from WPB Polypropylene fabric and Tyvek on the bottom. At $160 and 26oz it is worth considering.

I didn't even consider condensation on the inside of the floor. Is that really what happens?

Maybe I will get full eVent. I just didn't want Cuben.

I made eVent bivy with silnylon floor

No condensation on floor because it's against my sleeping pad. Floor goes up about 1 inch which is the thickness of the pad. When I've had floor go up higher than pad then I'de get condensation sometimes there.

The eVent is sort of heavy. If you're using it out in the rain, then it's probably worth it for the waterproofness.

If you're using it for protection against wind and rain splash then something lighter is sufficient, like M50.

I also have a full event ID overbag (a model with no zipper just a giant "cowl") and the 3 or so times i've slept out in a rain storm i've ended up hunching over on my side with the face opening down wind and my back into the weather so having the whole thing breathable is nice since most of it is exposed to air.

This works okay though would be a bit grim on an extended trip in bad weather and I prefer to carry a tent split with a partner and would consider a tarp or mid style shelter for solo stuff especially bellow tree line.

the thing rocks. too bad they don't make it any more. there was one in gearswap not too long ago.

I'm tempted by the ID Alpine Bivy, but I'm not sure if the end zips up or not, and I know I can't wiggle/crawl into a 2-foot opening in the middle of winter. I would rather have a hood that unzips all around, like the Outdoor Research bivys do.

I'm talking to Ron at MLD about a custom bivy.

The opening is bigger than 2' and it's really not that much of a physical feat. i'm sure even you can inchworm. with any kind of specialized gear there are +/- that come along with the actual application. the id overbag and alpine bivy while their uses can be varied they are both pretty minimal in design and specialized.

Max,

Ask Ron if he still has silnylon 2.0 that he can use for your floor, which is stronger and will resist punctures better.

I have Ron's 2008 eVent Soul Side Zip Bivy with the 2.0 silnylon floor and it has held up great.

Bomber bottom with no damage, though I have had a few times where I had a small "wet spot" from ground moisture, but nothing that was a problem because of my foam pad I sleep on.

Ron makes great stuff.

Don't see that I will be replacing my MLD bivy for years to come….maybe the only bivy that I own.

Tony

The opening is bigger than 2' and it's really not that much of a physical feat. i'm sure even you can inchworm. with any kind of specialized gear there are +/- that come along with the actual application."

I prefer a long side zipper over an end opening. Side zippers make it easier to get in and out of the bivy. Unfortunately long side zippers come with a weight penalty.

I wanted to update this thread and ask a few more questions, instead of opening a new thread, so as not to propagate the rumor that Max ignores all BPL advice!

I pulled the trigger on Borah Gear's new Snowyside bivy. I paid extra to get the full side zip for easy entry, the full eVent bottom, and I am having the seams taped. The works.

Questions:

Since I opted for full eVent, will this bivy be usable in mid-summer? Or is that just an unreasonable request of any bivy bag?

If it is warmer (too warm for summer), how much warmer is it about? AKA, were you comfortable?

Thanks!

(my plan is to use this thing as a standalone shelter for bikepacking, and I'm a tolerant sleeper who cares about nothing except profuse sweating.)

Borah Gear has a new E-Vent Bivy. Check it out.

Brian,

I just bought one. See the last post before yours!

"Since I opted for full eVent, will this bivy be usable in mid-summer? Or is that just an unreasonable request of any bivy bag?"

I've only used Goretex, not eVent but in theory my advice would apply to both.

I seem to remember you mentioning in the past that you take your sleeping bags 10*+ below their rating. My USGI bivy seems to add an additional 10* of warmth so I'd adjust your sleeping bag accordingly or at the very least, keep it unzipped.

It's important to sleep in a way where you're not breathing into the bivy. I notice condensation in the USGI bivy when I don't do this.

Thanks Ian, good info there. In the summer, if I were to use a bivy, I'd go absolutely minimalist on insulation.