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Ultralight waterproof backpack

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Dec 15, 2008 at 8:32 pm #1232659

Jan Rezac
BPL Member

@zkoumal
Locale: Prague, CZ

In past few years, I'm using a light, waterproof pack I made. The trick to make it light and waterproof is to separate the load-bearing harness and a waterproof drybag. The latest, third version weights 320 grams (11 oz) and looks like this:

If you like it, you can find detailed instructions and patterns here: gear.rezacovi.cz/backpack_mk3/instructions.html

The website has some problems right now, you can also download the instructions here: http://rapidshare.com/files/175347142/instructions.zip.html

Dec 15, 2008 at 9:14 pm #1464639

Joe Clement
BPL Member

@skinewmexico
Locale: Southwest

That's interesting. Now I have to go look up the conversion from grams to ounces.

Dec 15, 2008 at 9:17 pm #1464640

Nate Meinzer
Member

@rezniem
Locale: San Francisco

Or just go to google.com and type "320 grams to ounces" in the search bar and it will return the result of around 11 ounces.

Gotta love google for all the fluid ounces to cups to cubic inches to liters to etc. when comparing products.

Dec 15, 2008 at 9:20 pm #1464642

Unknown abc
Member

@edude

Joe, I have this bookmarked to make ALL Unit Conversions a snap.

http://www.digitaldutch.com/unitconverter/

Bookmark it and you'll never have to do the math again!

Just my 2 cents.

Cool backpack, Jan

Dec 16, 2008 at 12:19 am #1464670

Paul Tree
Member

@paul_tree
Locale: Wowwww

Nice pack & fantastic directions! I am going a similar way with my own pack frame, but so far it's not so light.

You may be able to get some feedback on dry bags from the users of the Arctic 1000 packs. They have a Pacific Outdoor Equipment Pneumo LTW. 50 and 65 liters. Chosen because of the welded seams.

There was a dry bag roundup article in 2006: Link

Dec 16, 2008 at 8:22 pm #1464863

Graham Wilson
Member

@grawil

The photo looks great, but the link to the instructions does not work?

Dec 16, 2008 at 8:30 pm #1464864

Joe Clement
BPL Member

@skinewmexico
Locale: Southwest

I drove to the town where I bought my sewing machine, and the thousand year old man I bought it from still has his shop. He checked it out, and showed me how to thread it again. Been 15 years since I did boat canvas, but I think I'm going to have to make one of these. And a bivy.

Dec 16, 2008 at 10:35 pm #1464876

Jan Rezac
BPL Member

@zkoumal
Locale: Prague, CZ

The site is online again.

Dec 18, 2008 at 11:52 am #1465183

Erik Graf
Member

@vango
Locale: Southeast

Jan:

Could not get the link to work – but like what I see so far. Been playing with a similar project. Nice work.

Just curious – where do you hike in the Czech Republic? Drove from Amsterdam to CR about 15 years ago and stayed in Opatov. Prague is one of my favorite cities – beautiful with beautiful people….

Dec 18, 2008 at 12:29 pm #1465190

Rog Tallbloke
BPL Member

@tallbloke
Locale: DON'T LOOK DOWN!!

Great looking pack Jan. Site seems to be down again though.

Dec 19, 2008 at 9:05 am #1465379

Paul Tree
Member

@paul_tree
Locale: Wowwww

I am trying to allow others to find this great pattern via Google by adding a couple of search terms they may be using.

Someone is asking for a pattern for this on PracticalBackpacking.com but I can't join, I only have a yahoo address. Wah. ** LINK **

If someone is a forum member there, post a link to this Thanks!

Moonbow Gearskin Backpack Plans
Arctic 1000 Backpack Plans
Ultralight Pack Frame Plans
Alternative Pack Frame Plans
Ultralight Lightweight Waterproof Backpack Plans

Dec 19, 2008 at 9:20 am #1465387

Greg Mihalik
Spectator

@greg23
Locale: Colorado

Paul,
FYI – I know you said 'Google' but –

The forums get indexed only a few times a week, so if you're expecting to find them with the BPL search give it a few days.

Also, as you may know, even then the BPL search is less than stellar.

And for others who may not know – to use Google on this site include the string

site:www.backpackinglight.com

in a Google search bar to restrict the search to just BPL.

Dec 20, 2008 at 7:45 pm #1465631

Jan Rezac
BPL Member

@zkoumal
Locale: Prague, CZ

The website has some problems right now, you can also download the instructions here: http://rapidshare.com/files/175347142/instructions.zip.html

Dec 24, 2008 at 8:50 am #1466281

Tom Peterson
BPL Member

@tpeterson1959
Locale: Pacific Northwest

Very nice design, and I admire it's simplicity! Thanks for sharing.

Dec 27, 2008 at 5:42 pm #1466792

. Callahan
BPL Member

@aeronautical
Locale: London, UK.

If you use FireFox you can use the HyperWords add on which will make ANY text interactive, to convert, translate or link etc….

I'm an IT dummy so I love this as I can convert weights, volume, currency etc, easily, without having to type in or open a new page for the info I want.

https://addons.mozilla.org/en-US/firefox/search?q=hyperwords&cat=all

This add on gets used every online session.

I also really like that pack idea!

Dec 28, 2008 at 10:12 am #1466851

Keith Selbo
Spectator

@herman666
Locale: Northern Virginia

what is the volume capacity of the pack and is there a maximum recommended load (weight)?

Dec 28, 2008 at 6:12 pm #1466941

Jan Rezac
BPL Member

@zkoumal
Locale: Prague, CZ

I guess the volume is a bit over 30 l what equals exactly to 2000 cuin. Manufacturer of the drybag says it's 37 l (~ 2222 cuin).

I have carried about 10 kg / 20 lbs in it and it is still quite comfortable. It would be possible to carry more if the pack was higher, because it holds its shape well when loaded. The limitation is in its short torso length, that is determined by the width of the sleeping pad.

The first version of the pack was made with wider pad (60 cm / 24 in), and it I used it even for a week long trip carrying all the food. Later, I switched to regular width pad, that small pack is just what I need for weekend or three days.
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