REI Co-op Flash 55 Pack - Men's Review
Brand: REI Co-op · Category: pack · Price: $199 - $229
Buy this pack if you are a budget-conscious backpacker who needs a versatile workhorse for weekend trips, or if you are just starting out and don't want to break the bank. Skip it if you are an ultralight gram-counter looking for the absolute lightest option, or if you frequently carry very heavy loads on multi-week expeditions.
Specs
| Volume | 55L |
|---|---|
| Weight | 2 lbs 13 oz (Men's M) |
| Pockets | Hipbelt pockets, shoulder strap pockets, side pockets, front pocket, internal hydration sleeve |
| Rain Cover | No, but compatible with Packmod Rainshield Pocket |
| Fabric Denier | 100D recycled ripstop nylon (primary); 210D recycled ripstop nylon (secondary areas) |
| Hipbelt Range | 32 (small) - 46 inches (large) |
| Load Capacity | 35 lbs |
| Frame Material | Spring steel internal frame |
| Torso Fit Range | 17 (small) to 21 inches (large) |
Strengths
- Highly customizable Packmod system allows removal of pockets and straps to shave weight down to 35 oz
- Comfortable 3D contoured hipbelt and ventilated backpanel for all-day carry up to 30-35 lbs
- Excellent organization with multiple pockets including forward-positioned water bottle pockets
- Durable recycled ripstop nylon (100D/210D) balances weight and toughness
- Adjustable torso fit ensures proper load transfer and stability
- Versatile roll-top design expands from ~40L to 60L for overnighters to multi-day trips
- Great value with features like tool loops, compression straps, and hydration compatibility
- Made in USA availability through REI stores with fast shipping
Complaints
- Heavier than true ultralight competitors at 2 lbs 10-13 oz base weight
- Limited main compartment (~40L) feels small for bulky beginner gear
- Max load of 30-35 lbs not ideal for very heavy loads over 35 lbs
- No included rain cover, requires separate Packmod accessory
- Packmod accessories add complexity and potential for loss during reconfiguration
- Roll-top closure can be fiddly for quick access compared to top-loading lids
- Women's XS version slightly heavier at 2 lbs 10 oz
- Fabric punctures possible despite ripstop, though self-healing with UHMWPE in some areas
Comfort & Fit
The REI Co-op Flash 55 comes equipped with a spring steel internal frame that's designed to transfer weight efficiently to your hips, making it feel lighter than its 2 pound 13 ounce trail weight suggests. This frame, while not as rigid as some external frames, provides a good balance of support and flexibility, allowing the pack to move with your body on uneven terrain. The hipbelt offers a generous range, accommodating waist sizes from 32 to 46 inches, ensuring a snug and comfortable fit for a wide variety of body types, which is crucial for preventing chafing and hot spots on longer hikes. Its torso fit range extends from 17 to 21 inches, making it suitable for most adult backpackers, though those at the extreme ends of the spectrum might need to double-check their measurements to ensure proper weight distribution. The adjustability means you can dial in the fit precisely, a feature sometimes overlooked in packs at this price point.
Value & Competition
Priced between $199 and $229, the REI Co-op Flash 55 positions itself as a strong contender in the mid-range backpacking pack market, offering excellent value for its feature set. Compared to premium ultralight packs like those from Hyperlite Mountain Gear or Osprey's more specialized models, the Flash 55 provides similar capacity and comfort features without the associated cost, making it an accessible entry point for new backpackers. While other brands might offer slightly lighter packs, they often come with a significantly higher price tag or sacrifice comfort features found here, like the padded hipbelt and shoulder straps. For less than $230, you're getting a durable pack with thoughtful organization, which is a compelling argument for anyone not chasing every last gram saved. It stands out by delivering a practical, dependable option that won't require you to empty your wallet before you even hit the trail.
Capacity & Use Cases
With a 55-liter volume, the Flash 55 is ideally suited for weekend trips, overnights, or even minimalist five-day adventures, comfortably accommodating around 35 pounds of gear, food, and water. This capacity allows for essential backpacking items, a comfortable sleeping system, and enough provisions for a few days without feeling overly stuffed. While some experienced ultralighters might push it for longer trips, its sweet spot is firmly in the 3 to 5 day range, especially for those who appreciate a few comfort items. This pack really shines when you don't need expedition-level capacity but still want enough room for all your necessities, including a heavier sleeping bag or extra layers for shoulder season weather. It's a versatile choice that adapts well to changing trip lengths and gear lists, making it a reliable companion for varied backpacking escapades.
Weight & Packability
Weighing in at 2 pounds 13 ounces for the men's medium, the Flash 55 lands squarely in the lightweight category, effectively balancing durability with a manageable trail weight. This isn't an ultralight pack designed for ounce-counting thru-hikers, but it's far from the heavy internal frames of old, striking a balance that most backpackers will appreciate. Its weight is especially impressive considering the robust 210D recycled ripstop nylon used in high-wear areas, which often adds bulk to other packs. The ability to strip down some of the external accessories, though not explicitly an ultralight feature, does allow for some modularity if you want to shave a few ounces for a specific trip. For its given capacity and load-carrying capability, this weight makes it a competitive option for folks who want comfort without carrying an unnecessarily heavy pack to start with.
Organization & Access
The Flash 55 features a wealth of pockets designed for intuitive organization and quick access to frequently used items. It includes thoughtfully placed hipbelt pockets, perfect for snacks, a phone, or a small camera, keeping essentials within arm's reach without needing to stop and remove the pack. The shoulder strap pockets are a welcome addition, providing another accessible spot for chapstick, sunscreen, or a small GPS device. Standard side pockets can securely hold water bottles or trekking poles, and a large front pocket offers quick access to a rain jacket or map. Internally, an hydration sleeve ensures your water bladder stays put, making rehydration easy on the move. This comprehensive pocket selection minimizes fumbling and allows you to keep your pace without constantly stopping to dig through your main compartment, a common frustration with simpler pack designs.
Durability & Materials
Constructed primarily from 100D recycled ripstop nylon in its main body, with more robust 210D recycled ripstop nylon in high-abrasion zones, the Flash 55 is built to withstand the rigors of the trail. The 'denier' (D) refers to the fiber's thickness, so 100D is lightweight for the main body but the 210D provides extra toughness where it's needed most, like the base and side panels, giving you confidence that your pack can handle scrapes and bumps against rocks or branches. The use of recycled materials also adds an element of environmental responsibility, which is a nice bonus. While not as bombproof as some expedition-grade packs, this material choice offers an excellent balance of weight savings and long-term durability for typical backpacking scenarios. You can expect this pack to hold up well through many seasons of use, whether you're bushwhacking or sticking to maintained trails.
Fit Customization & Modularity
REI's Packmod system, exemplified by the Flash 55, offers a unique degree of customization allowing users to attach or remove external pockets and accessories based on their specific trip needs. This modularity means you can choose to add the Packmod Rainshield Pocket for extra weather protection, a larger hipbelt pocket for more snacks, or even a different type of external carry solution. The adjustability of the hipbelt, ranging from 32 to 46 inches, combined with a torso fit range of 17 to 21 inches, ensures that most hikers can achieve a personalized and comfortable carry. While you won't find a fully custom-molded frame, the ability to fine-tune the shoulder straps and hipbelt means the weight load of up to 35 pounds can be effectively distributed to reduce strain. This adaptability makes the pack truly versatile for different loads and body types.
Weather Protection & Limitations
The Flash 55 does not include an integrated rain cover, which is a notable omission compared to some other packs in its category that offer this convenience. However, it is designed to be compatible with REI's proprietary Packmod Rainshield Pocket, which can be purchased separately to add weather protection for external gear. Without this accessory, or an aftermarket rain cover, your gear inside the pack will not be fully protected from heavy rain, as the ripstop nylon is water-resistant but not fully waterproof. This means you'll need to either pack your essentials in dry bags or invest in a separate rain cover if you plan on hiking in inclement weather, adding to the initial cost. This design choice represents a trade-off, allowing REI to keep the base pack weight down and give users the option to customize their weather protection based on anticipated conditions.