REI Co-op Flash 55
$ BudgetTrending Down
tldr; 2.5lb pack carries 35+ lbs comfortably. Great value at $130-140 on sale. Remove brain for 2lb 2oz. XS fits petite hikers.
Check pricesSentiment Breakdown
44%Positive
Positive
44%Neutral
50%Negative
6%Based on 85 Reddit opinions
Strengths & Weaknesses
Each axis shows what % of Reddit comments are positive about that topic. Higher = more praise.
Key Features
- Adjustable torso for a fine-tuned fit.
- 3D contoured hipbelt and ventilated back panel.
- Roll-top lid provides weather resistance and allows volume adjustment.
- Removable lid can form a waist pack or be left at home to save weight.
- Packmod Custom Carry System for customizable attachment points.
- ⚖️ Under 3 lbs with removable brain
- 💰 $130-140 on sale, great value
- 💪 Carries 35-40 lbs well
Sentiment Over Time
What Redditors Actually Say
What Redditors Say
Best praise vs top criticism for REI Co-op Flash 55
Best Praise
+59 pts“Tbh I think you’re overthinking it. Which is super easy to do and very common right before a thru. Back in 2013 I did the pct with a flash 55 and my BW was like 18lbs, had no issues.”
r/Ultralight
ViewTop Criticism
+4 pts“Same. I just bought the Mariposa and it fits vertically. Prior, I had a REI Flash 55 that had to play some serious Tetris with.”
r/Ultralight
View12 more quotes available below
Related Products
Frequently Asked Questions
Is the REI Co-op Flash 55 worth buying?
2.5lb pack carries 35+ lbs comfortably. Great value at $130-140 on sale. Remove brain for 2lb 2oz. XS fits petite hikers.
What do Redditors love about the REI Co-op Flash 55?
Redditors highlight: ⚖️ Under 3 lbs with removable brain. 💰 $130-140 on sale, great value. 💪 Carries 35-40 lbs well.
What are the downsides of the REI Co-op Flash 55?
Some criticisms include: "Looks like the flash load limit is 30 lbs :/ and I expect to carry over that during my extended carry"
How accurate are these ratings?
Our sentiment analysis is approximately 80-85% accurate compared to manual review. Products with more mentions (REI Co-op Flash 55 has 85) tend to have more reliable scores.
85 Reddit opinions analyzed • Last updated 4/16/2026