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Bivvy curious

Posted: Tue Jan 30, 2024 6:05 pm
by Lemming
Hi,

Following the bivvy a month thread has got me wondering if I should buy a bivvy for this year.

Why are there so many spellings ?

Theres this OEX bivi
https://www.millets.co.uk/15987150/oex- ... t-15987150

The boarah gear bivy
https://borahgear.com/products.html

and the Alpkit bivvy
https://alpkit.com/collections/bivvy-bags

I would like one which is waterproof and idealy under £100 do I need a tarp too?

Can you help out recommending one please? Do you need an additional groundsheet/miggy net too?

Thanks

Re: Bivvy curious

Posted: Tue Jan 30, 2024 6:18 pm
by Bearbonesnorm
If there's budget to consider then it's hard to see beyond an XL Alpkit Hunka. I say XL as they offer quite a bit more room than a standard version which allows you to place your mat inside should you wish.

Do you need a tarp? In truth that depends whether it's raining. If it is and you don't have one, the level of misery can spiral quite quickly.

Re: Bivvy curious

Posted: Tue Jan 30, 2024 6:29 pm
by RIP
Lemming wrote: Tue Jan 30, 2024 6:05 pm Why are there so many spellings ?
Good question! I think that actually they might well be named to rhyme with that tasty frozen 1970s treat......

Image

Anyway, they're the devil's work. Boil-in-the-bags that is, not the ice-cream - that was yummy :smile: .

Now over to some comments from our more sensible residents.....

Re: Bivvy curious

Posted: Tue Jan 30, 2024 7:57 pm
by redefined_cycles
Hi Lemming. If it's a Hunka you decide on then I have one available (in XL if you're tall as the small was a but too tight for me). Just used once myself and bought it as an almost new item. Still in mint condition.

I upgraded/swapped to a Rab eVent which I'll be trying out tonight hopefully... Most people with a bivy still carry a tarp. I don't (cos I'm daft).

Re: Bivvy curious

Posted: Tue Jan 30, 2024 9:23 pm
by Lemming
Bearbonesnorm wrote: Tue Jan 30, 2024 6:18 pm If there's budget to consider then it's hard to see beyond an XL Alpkit Hunka. I say XL as they offer quite a bit more room than a standard version which allows you to place your mat inside should you wish.

Do you need a tarp? In truth that depends whether it's raining. If it is and you don't have one, the level of misery can spiral quite quickly.
Magic thanks, is it worth spending a bit more?

Re: Bivvy curious

Posted: Tue Jan 30, 2024 9:25 pm
by fatbikephil
Bivvy bag only can lead to a certain degree of misery when it's wet. Adding a tarp makes it much more pleasant - also worth getting a pole too - trying to use the bike to support a tarp can be a bit of a faff. Borah gear bivvy bag plus tarp and one of Stu's carbon poles makes for a very light set up. IF you go with a Hunka and venture into midge land, a sea to summit nano mozzie tent makes it bug proof.

Re: Bivvy curious

Posted: Tue Jan 30, 2024 10:48 pm
by rivers
I've just posted m Alpkit Elan on the classifieds page. Lightly used (3 nights), but I'm more of a tent person.

Re: Bivvy curious

Posted: Wed Jan 31, 2024 8:22 am
by godivatrailrider
I've considered it but came to the undeniable conclusion I like the protection from midges, slugs & frankly, werewolves a tent offers. Stick with a tent and as well as being drier, I know I'm safe from all 3.
And they don't seem particularly lighter weight once you've added all the shizz to put the tarp than a tent. Stick with a tent.

Re: Bivvy curious

Posted: Wed Jan 31, 2024 8:47 am
by Bearbonesnorm
is it worth spending a bit more?
Not much to gain unless you spend considerably more. Do remember that some bivvy bags (especially lighter ones) aren't waterproof and only act as a bag cover, so will require a tarp.

Re: Bivvy curious

Posted: Wed Jan 31, 2024 9:05 am
by voodoo_simon
Quite a few here have used these
https://www.sportpursuit.com/catalog/pr ... id/2220491

Rab Ascent bag, half price in the above store

Used mine in snow, rain and survived the night :-bd Much more comfortable than the Alpkit bag (only downside is the rab bag is missing a midge net)

Re: Bivvy curious

Posted: Wed Jan 31, 2024 12:41 pm
by Bearbonesnorm
Much more comfortable than the Alpkit bag (only downside is the rab bag is missing a midge net)
How is a bivvy bag more comfortable? :wink:

You may find the RAB is somewhat more 'snug' than the Hunka XL, not much chance of getting a mat inside in my experience - or at least not an air mat.

Re: Bivvy curious

Posted: Wed Jan 31, 2024 12:52 pm
by fatbikephil
That Rab bivvy looks more like an Alpine rather than an ascent. My ascent is a bit more roomy. Looking at the Rab site they have dropped the event bivvies....

Always worth reading Ronald Farmer's 'book of the bivvy' before going down that line...

Re: Bivvy curious

Posted: Wed Jan 31, 2024 1:11 pm
by voodoo_simon
Bearbonesnorm wrote: Wed Jan 31, 2024 12:41 pm
Much more comfortable than the Alpkit bag (only downside is the rab bag is missing a midge net)
How is a bivvy bag more comfortable? :wink:

You may find the RAB is somewhat more 'snug' than the Hunka XL, not much chance of getting a mat inside in my experience - or at least not an air mat.
I have to justify my responses now? It’s a forum though…?! :lol: More comfort in that I’ve had less condensation/dampness using the Rab over the Alpkit

Good point about the sleep mat though, I do find it’s more comfortable with the mat on the outside, which is less practical.

Re: Bivvy curious

Posted: Wed Jan 31, 2024 3:33 pm
by fatbikephil
This and the tarp thread are rapidly converging....

Re: Bivvy curious

Posted: Wed Jan 31, 2024 5:37 pm
by redefined_cycles
Much more comfortable than the Alpkit bag (only downside is the rab bag is missing a midge net)
How is a bivvy bag more comfortable? :wink:

You may find the RAB is somewhat more 'snug' than the Hunka XL, not much chance of getting a mat inside in my experience - or at least not an air mat.
Yes, I tried and the sleeping bag wouldn't loft. So last nughts bivy had me doing some structural rearrangement to the bivy. Mat went underneath instead!

Re: Bivvy curious

Posted: Wed Jan 31, 2024 6:15 pm
by RIP
fatbikephil wrote: Wed Jan 31, 2024 3:33 pm This and the tarp thread are rapidly converging....
Head-on collision...... BANG!

You could always blow up your bivvybag and use it as an air-bag in said collision.

But of course a tarp is much easier to get out of in case of an accident......

Re: Bivvy curious

Posted: Thu Feb 01, 2024 1:36 pm
by JohnClimber
Bearbonesnorm wrote: Tue Jan 30, 2024 6:18 pm If there's budget to consider then it's hard to see beyond an XL Alpkit Hunka. I say XL as they offer quite a bit more room than a standard version which allows you to place your mat inside should you wish.
XL Hunka for the money

But I moved to this and won't go back to a hunka XL now
https://www.bearbonesbikepacking.co.uk/ ... try-bivvy/

Re: Bivvy curious

Posted: Thu Feb 01, 2024 8:09 pm
by BridlewayBimbler
Although I didn't actually get that much sleep on my maiden bivy - thanks to the rutting foxes of North Hertfordshire :lol:- I found the sleep.I DID get left me feeling great. :-bd
Maybe being out in the fresh air helps? :mrgreen:

Re: Bivvy curious

Posted: Thu Feb 01, 2024 8:34 pm
by whitestone
Back to the etymology :grin:

I use "bivy" as a noun (contraction of bivouac) and "bivvy" as a verb. The doubling of a final single consonant when going from noun to verb is pretty common in English: trap -> trapping; etc.

Anyway...

I use a lightweight Borah Gear bivy, 170g, along with a cuben fibre (DCF) tarp, 140g, from Trekkertent. The bivy bag isn't fully waterproof but will deal with condensation and pushing against the tarp. Add 100g for a pole and some pegs and that's just over 400g for a pretty flexible setup. The bivy bag has a no-seeum panel at the head end so will deal with the winged teeth. If I wanted more protection then the Nano net is about 80g so the whole caboodle is still under 500g.

I only started putting the mat inside the bivy bag when I started bikepacking. Back in my alpine climbing days the mat (a CCF jobbie) would go on the outside as it acted as protection from rocks for the bag. A standard sized bag isn't big enough for an inflatable mat, sleeping bag and a person so you do need something the size of the Hunka XL - the Borah Gear bags are basically the same size.

Re: Bivvy curious

Posted: Mon Feb 05, 2024 12:27 am
by dlovett
To confuse you more I will add ti goat into the mix. Very light, packs very small, can fit me a large xtherm and a quilt in fine, can be open, fully zipped up or fully mesh head area zipped, mine is two tone green so you cannot see it from a couple of metres away and its reasonably water resistant. Only downside is they are made in the States and cost about £145 a few years ago. Still it’s beautifully made and custom anything was no issue.

Only downside is it’s quite a slipper material on the inside and you can slide down in it if you are on a slope. But nothing you can’t fix with some silicone beads inside it I would guess.

I think Stu did a review on them in the day, mine I think is the Omni Raven.

Re: Bivvy curious

Posted: Mon Feb 05, 2024 2:02 pm
by PaulB2
My Ti Goat Kestrel is very light but not waterproof on top, little more than a windproof layer. As I've discovered the fun way, it's dependent on a tarp in all but the driest weather.