done the search, no luck.

anyone have any thoughts on which one is better and then why or why not?

i'm looking to buy one of these in the one litre size.

http://www.nalgene-outdoor.com/store/detail.aspx?ID=1168

or

http://www.gsioutdoors.com/detail.aspx?c=11&sc2=29&p=73387&lu=%2flist.aspx%3fc%3d11%26sc2%3d29&

thank you in advance.

+1 for Nalgene. Indestructible. JMO.

Blitz

+1 for the Nalgene....cause it fits in my GSI cup better.

http://www.gsioutdoors.com/list.aspx?c=4&sc2=132

Nalgene bottles are the gold standard. However, I have never had a problem with my GSI products either. You really can't go wrong.

"...it fits in my GSI cup better..."

Mine too. Slight plastic flavor, but worth it...

+1 for Nalgene, but the GSI ones are probably fine.

Since Nalgenes are the de facto standard, a lot of bottle carriers and other accesories are made to fit Nalgene bottles. A lot of water filters, if you intend to filter for purification, are threaded to screw directly onto Nalgene wide mouth openings. I've actually gone more toward Nalgene because so many other products work with Nalgenes, but they're a great bottle, period.

Nalgenes are very leak proof which is a huge deal if you plan to do cold wx outings and want to take a hot water bottle with you into your sleeping bag.

One item of note: with the polycarbonate (clear plastic) versions, there is some controversy that chemicals leach into the water. Supposedly the translucent bottles made out of polyethelene (HDPE) are safer. http://www.nalgene-outdoor.com/store/detail.aspx?ID=59 You'll also notice that the HDPE are $6.60 vs. $9.00 for the polycarbs.

One (kinda) bad thing about the colorized polycarb bottles is that sometimes the color from iodine water purification gets distorted whereas with the white translucent bottles, I can always see the color which is just a double check to know that the "dosage" is right.

Unless your need is immediate, shop around. I've seen very good deals ($5.00 for the polycarbs, $4.50 for the HDPE's) on line.

Addendum: Karst sports has the half liter HDPE Nalgenes on sale for $1.62!! http://www.karstsports.com/na16wimohdbo.html

I use my Nalgenes daily and the only thing that has ever destroyed one is my dog. She eats the caps when she can get a hold of one. I've bought more replacement caps than I care to think about. One of the bottles has bite marks in it, but still works fine.

I agree Nalgene and GSI products are both well made. I don't see a bad choice in either one of them.

One thing that is never mentioned in this nalgene/polycarbonate chemicals issue is that all the clear NSF listed food services containers are polycarbonate. So if you're really worried about this, then don't eat out at any restaurant anywhere. Nevermind the fact that a weekend with room temp water in a nalgene is far less likely to have anything leach into it versus a bin that sits in a salsa bar with acidic salsa or lemons or limes in it which then get put through the high temp industrial washer.

ouch. good point.