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The original was posted on /r/Ultralight by /u/GoSox2525 on 2025-09-20 16:14:43+00:00.

For trips exceeding a weekend (~5-7 days) in areas of required wag bag use, how are people storing the used bags? For shorter climbing trips I’ve previously just put them either in my external mesh pocket or in my trash bag. But for something longer where I might accumulate 4-5 bags, I’d like a solution that better quarantines the bags and provides a bit more odor resistance, while keeping it light.

Options I’ve seen some chatter about:

• peanut butter jar. Has the benefit of rigid sides and a screw-top. Sounds light and convenient, but not sure how much odor it would really contain
• pringles can. Similar benefits to the PB jar, but won’t seal as well and isn’t as robust. Lighter though
• Nalgene. Very robust, but heavier and has a small opening. Also not very cost effective since I don’t own any.
• ziploc freezer bag. Lighter and lager in volume than any reasonable-sized hard-sided container, but not as robust
• Opsack. “Odorproof” and light-ish, but IME these things absolutely never stay sealed
• knotted grocery bag. Extremely light, but seems almost as good as nothing to me.

Any other obvious ideas I’m not considering? Could the beloved Deli Container be an option here? They fully seal, are very light, and probably won’t ever break. They also come in a variety of large sizes. Anyone ever tried tone for this purpose?