Ursack Major vs Ursack AllMitey (2026)
Two official Ursack bags at the same listed volume. The AllMitey adds official critter resistance and a lot of official weight and price. Neither bag is automatically legal in a park that requires a hard canister.
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How this page was made: this is a research-based guide built from manufacturer spec and pricing pages and the findings of the reviewers we name and link. We haven’t field-tested these products ourselves, and we don’t give scores. How we pick.
Check the land unit you are entering. Food-storage rules have the force of law in many parks and change. We cite the pages we fetched and the dates on them; this is not legal advice. Confirm the current rule before you hike.
Quick answer
Choose Ursack Major ($124.95) if the land unit accepts the Ursack Major, and official 7.6 oz / $124.95 is the point. Choose Ursack AllMitey ($189.95) if you want official bear-and-critter resistance in one bag or a $189.95 official price and 9.5 oz official weight are acceptable.
Last updated Prices checked Nov 2026
Check Ursack Major price (opens in a new tab)Check Ursack AllMitey price (opens in a new tab)
Key facts at a glance
| Ursack Major | Ursack AllMitey | |
|---|---|---|
| Official price | $124.95 | $189.95 (sold out when fetched) |
| Official weight | 7.6 oz | 9.5 oz official. A review on the same official page said 10.3 oz on a scale and 13 oz on a box — we flag that and still cite 9.5 oz as the maker spec |
| Volume / days | About 10.65 L; about 5 days, or 37 freeze-dried servings, on the official Major page | About 10.65 L; about 5 days of food for one person, official |
| Materials (official) | Ursack’s Major fabric and design as described on the official Major page (UHMWP-family bear bag; see that page for the current wording) | Laminated UHMWP and Kevlar; official copy says virtually puncture proof and water resistant if you treat the seams, which might leak |
| IGBC list dated Oct 22, 2026 | Certification no. 3738 (Major, previously S29 AllWhite), certified 4/11/14 | Certification no. 5135, certified 4/24/17. The official product page we fetched did not print this number |
We compared these bags using Ursack’s official Major page (already fetched for our BV500 comparison), Ursack’s official AllMitey page (fetched November 10, 2026), and the IGBC certified-products PDF dated October 22, 2026. Official volumes match at about 10.65 L. Official jobs do not: the Major is the lighter bear-resistant bag; the AllMitey is described as bear- and critter-resistant (mice, raccoons, squirrels, pine martens in official copy). We have not used these bags in the backcountry.
Choose the Ursack Major if official weight and price come first in land units that accept this bag: $124.95, 7.6 oz, about 10.65 L / about 5 days, IGBC certification no. 3738 (Major, previously S29 AllWhite) on the list dated October 22, 2026. Choose the AllMitey if you want official bear-and-critter resistance in one bag: $189.95 official (sold out when we fetched the page), 9.5 oz official (a customer review on the same page said a scale read 10.3 oz and a box said 13 oz — we report those disagreements and still cite 9.5 oz as the official spec), about 10.65 L / about 5 days, laminated UHMWP and Kevlar, with official guidance to treat seams because they might leak. The IGBC PDF dated October 22, 2026 lists the AllMitey as certification no. 5135, certified April 24, 2017. The official AllMitey page we fetched did not print that number; we cite the PDF. We haven’t hung or tied either bag around a bear test, and we don’t give scores. Yosemite’s allowed-container list we fetched does not include Ursack. Check the land unit. This is not legal advice.
Ursack Major vs Ursack AllMitey: side-by-side
| Ursack Major | Ursack AllMitey | |
|---|---|---|
| Official price | $124.95 | $189.95 (sold out when fetched) |
| Official weight | 7.6 oz | 9.5 oz official. A review on the same official page said 10.3 oz on a scale and 13 oz on a box — we flag that and still cite 9.5 oz as the maker spec |
| Volume / days | About 10.65 L; about 5 days, or 37 freeze-dried servings, on the official Major page | About 10.65 L; about 5 days of food for one person, official |
| Materials (official) | Ursack’s Major fabric and design as described on the official Major page (UHMWP-family bear bag; see that page for the current wording) | Laminated UHMWP and Kevlar; official copy says virtually puncture proof and water resistant if you treat the seams, which might leak |
| IGBC list dated Oct 22, 2026 | Certification no. 3738 (Major, previously S29 AllWhite), certified 4/11/14 | Certification no. 5135, certified 4/24/17. The official product page we fetched did not print this number |
| Critters vs bears | Bear-resistant bag, IGBC-listed; not the AllMitey’s official critter story | Official bear- and critter-resistant language (mice, raccoons, squirrels, pine martens) |
What are the pros and cons?
Ursack Major: pros
- Lighter official weight (7.6 vs 9.5 oz) and a lower official price ($124.95 vs $189.95)
- Same official ~10.65 L / ~5-day volume as the AllMitey
- IGBC-listed (cert. 3738) on the October 22, 2026 PDF
Ursack Major: cons
- Official job is bear resistance, not the AllMitey’s official critter-resistance story
- Still not on Yosemite’s allowed-container list we fetched
- A soft bag is not a hard canister when a unit requires one
Ursack AllMitey: pros
- Official bear-and-critter resistance in one bag, with IGBC cert. 5135 on the October 22, 2026 list
- Same official ~10.65 L volume as the Major
- Kevlar/UHMWP official laminate aimed at chewing critters as well as bears
Ursack AllMitey: cons
- Higher official price ($189.95) and officially heavier (9.5 oz, with a review-scale disagreement we flag)
- Sold out on the official page when we fetched it
- Official seams may leak unless treated; still not a hard canister, and still not on the Yosemite list we fetched
Which should you choose: Ursack Major or Ursack AllMitey?
If the land unit accepts an IGBC-certified Ursack and you want the lighter, cheaper official bag, the Major is the documented pick at $124.95 and 7.6 oz. If you want official critter resistance as well as bear resistance, the AllMitey is the documented pick at $189.95 and 9.5 oz official, when it is in stock. Both official volumes are about 10.65 L. We have not tested these bags. Neither is a substitute for a hard canister where the land unit requires one, and Yosemite’s allowed list we fetched does not include Ursack. This is not legal advice.
Choose Ursack Major if…
- The land unit accepts the Ursack Major, and official 7.6 oz / $124.95 is the point
- You already have a plan for mice and smaller critters, or you do not need the AllMitey’s official critter story
- You will still pack an odor-barrier liner if Ursack recommends one for the Major
Choose Ursack AllMitey if…
- You want official bear-and-critter resistance in one bag
- A $189.95 official price and 9.5 oz official weight are acceptable
- The land unit accepts the AllMitey — confirm the current list, not only the IGBC PDF
IGBC listing is not a park permit
The IGBC PDF dated October 22, 2026 lists both bags (Major 3738; AllMitey 5135). The IGBC document itself says certification does not guarantee that a grizzly will never get in, and that the list is information, not an endorsement. Yosemite National Park’s allowed-container page we fetched for the BV500 comparison lists the BearVault 500 and does not list Ursack; hanging food is illegal throughout that park, per the page we fetched. Always read the unit you are entering the week you leave.
Certification is not a Yosemite (or any-park) permit
The IGBC certified-products PDF dated October 22, 2026 lists both the Ursack Major and the AllMitey among other Ursack models. The IGBC program page we fetched says certification is not a guarantee that a product is bear-proof, and it does not automatically approve a product for every public land unit. Yosemite’s allowed-container page, valid as of July 2026 and last updated July 10, 2026, lists the BearVault 450 and the BearVault 500; Ursack is not on that list. Always read the land unit you are entering. This is not legal advice.
Who should skip both Ursacks?
- Anyone entering a unit whose published list requires a hard canister or names BearVault and not Ursack. See the BV450 vs BV500 page.
- People who want a 2 lb hard stool-and-canister in one. That is a BearVault, not a soft bag.
- Shoppers who only wanted the AllMitey’s official critter story and were about to take either bag into a park that does not allow it. The land unit still decides.
Frequently asked questions
Do they hold the same amount of food?
Which is lighter?
How much do they cost?
Is the AllMitey IGBC certified?
Can I use these in Yosemite?
Sources
Prices, specs and land-unit rules were checked on the pages below as of Nov 2026. Brands and land units change prices and rules often, so confirm them on the seller’s or official land-unit page before you buy or go.
- Ursack: Major official product page (price, weight, volume; fetched for our BV500 comparison, Nov 10, 2026) (ursack.com)
- Ursack: AllMitey official product page (price, 9.5 oz, 10.65 L, materials, seam note; fetched Nov 10, 2026) (ursack.com)
- IGBC Certified Products List PDF (dated October 22, 2026; Major cert. 3738, AllMitey cert. 5135) (igbconline.org)
- IGBC: Bear-Resistant Products program page (certification is not bear-proof and is not automatic approval on every public land unit; fetched Nov 10, 2026) (igbconline.org)
- Yosemite National Park: Allowed Food Storage Containers (valid as of July 2026; last updated July 10, 2026; lists BearVault 450 and 500; Ursack is not listed) (nps.gov)
- Yosemite National Park: Bear Canister Borrowing and Related Guidance (fetched with the allowed-container page for this food-storage set) (nps.gov)
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