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Pack Fly
The last thing you want when you're miles and miles from the nearest road is a pack full of wet gear. With the Mystery Ranch Pack Fly you'll be able to keep all the contents of your pack nice and dry through down-pouring rain. Available in three different sizes and accommodating packs all the way from 25-105L, it's perfect for everything from quick day hikes to multi-week backpacking missions. A built-in pocket ensures that you can have quick access to snacks and gear that would otherwise be stuck hiding in your pack, and also doubles as a stuff sack when blue skies return and it's time to tuck the fly away for (hopefully) another day.
Details
- Lightweight and packable rain cover to keep gear dry as you hike
- Durable and protective fabric guards your gear from rainy weather
- Built-in pocket lets you keep important items within easy reach
- Pocket doubles as a stuff sack when sunny weather swings back around
- Different sizes accommodate packs from 25-105L
- Item #MYT003D
- Pack Size
- [small] 25-45L, [medium] 45-70L, [large] 70-105L
- Claimed Weight
- [small] 3oz, [medium] 3.7oz, [large] 5oz
- Manufacturer Warranty
- lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
5 based on 92 ratings
Review Summary
Fits True To Size
Screen reader users: the following list provides a visual scale to illustrate the product fit. Please refer to the heading above for the fit type in text.Customer Images
Here's what customers have to say
The product is a durable and effective rain cover for backpacks. It is lightweight, compact, and easy to use, keeping the contents of the pack dry even in heavy rain and wind. The rain cover fits securely on a variety of backpack models and is considered a must-have accessory by many users. While some felt it should be included with the purchase of the backpack, most agreed it is a worthwhile investment to protect their gear.
AI-generated from the text of customer reviews.
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Selecting an option will reload the available reviews on the pageJune 22, 2025
Rain fly
I’ve fit it to my bag and fits flawlessly true to size can’t wait to put it to the test this September
Originally reviewed on mysteryranch.com
May 26, 2025
Paid for itself the first outing
Used this on an overnight in Dolly sods WV. Rained the entire 7 hour trek in and this kept everything in the pack bone dry. If you have the bridger 65, get the large size. Worth every penny.
Originally reviewed on mysteryranch.com
May 20, 2025
Quality construction
Great durability. Fits my Coulee 40 perfectly. Lightweight too.
Originally reviewed on mysteryranch.com
January 30, 2025
Great Fit
This rain cover fits the Mystery Ranch Bridger 35 perfectly. Just what I needed.
January 8, 2025
Nice accessory.
It is very high quality and it packs into itself. It was worth it.
Originally reviewed on mysteryranch.com
December 24, 2024
Bear tooth projector
I purchased the bag fly from my beer tooth backpack in for those of us to like a quick, easy simple product. Lightweight to carry the protected contents and a heavy rain in our pack. If you greatest little product there is thanks again Mr. Ranch. I give it 5 stars.
Originally reviewed on mysteryranch.com
December 6, 2024
The orange is great for gun season
When backpacking I normally don't use a pack cover - just put anything I care about (clothes, sleep system) in dry bags. I got this for gun hunting season for safety, and it works really well.
Originally reviewed on mysteryranch.com
November 13, 2024
A must have!
Simple, but effective! The built in pouch for the rain fly is a nice touch.
Originally reviewed on mysteryranch.com
September 8, 2024
Works as expected
I bought this for a terraframe 80 that I took camping for a few days in heavy rain. Worked great and I appreciate the loop used to secure it to the bag. I really believe these bags (since they’re so expensive) should come with a rain fly. I’m not too poo butt since the rain fly wasn’t crazy expensive to buy after the fact.
Originally reviewed on mysteryranch.com
August 6, 2024
Doesn’t fit all MR packs the same
This cover is sturdy and the band that holds it in place well and didn’t stretch out over almost three weeks of daily use stretched to its limit. However the sizing is off for the Radix packs -putting things in the side pockets of the Radix 57 meant the medium didn’t fit as well as I would have liked. It left the side pockets slightly exposed. Size up or try another brand for those MR packs.
Originally reviewed on mysteryranch.com
Do you have a question about this product?
June 2, 2025
What size would you use for a woman's Glacier 70L - a M or a L?
Originally reviewed on mysteryranch.com
February 17, 2025
What size would fit the Tower 47L?
Originally reviewed on mysteryranch.com
January 10, 2025
I’ve got the 75 metcalf and I mostly day hunting with not a lot of gear. Will the large be too big without the bag being full
Originally reviewed on mysteryranch.com
November 25, 2024
Will the lrg fit a recce with sustainment pouches and day pack top flap? Usually have the ruck stuffed.
Originally reviewed on mysteryranch.com
October 19, 2024
Hi, I have the Coulee 20 how well will the small fly fit?
Originally reviewed on mysteryranch.com
September 7, 2024
Can these be put in a washing machine?
Originally reviewed on mysteryranch.com
June 25, 2024
I saw you answer small for your 3-day assault pack. If I have a removable Stick-it with helmet, and two rip zip pockets attached to the side, would medium be big enough?
Originally reviewed on mysteryranch.com
May 7, 2024
What size pack cover should I order to fit my women's bridger 55?
Originally reviewed on mysteryranch.com
February 26, 2024
Will this fit a Mule Pack and what size?
Originally reviewed on mysteryranch.com
February 21, 2024
Hello, my current ruck is a 37L plus pouches on the outside, what size would you recommend for my ruck?
Originally reviewed on mysteryranch.com