Originally Posted By: Susan
I suppose it would kill Wiggy's, or any other company, to make a single-wall WIDE-MOUTH BOTTLE...

Originally Posted By: ohiohiker
Is the problem that they don't match the standard Nalgene size thread that many water filters use?

Have one of these — made by Guyot Designs — on my Christmas list: "63mm mouth works with wide mouth water purifiers & accessories." The tethered reinforced nylon lid is removable. Two other "models" carried by EverestGear.com .
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"Things that have never happened before happen all the time." — Scott Sagan, The Limits of Safety