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Internal Frame Backpacks
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- OspreySopris 30 Snow Pack - Women's$134.93Save 25%compared to $180.00(0)0 reviewsGear Capacity:30 litersWeight:2.44 lbs
- OspreyKamber 20 Snow Pack - Men's$134.93Save 25%compared to $180.00(9)9 reviews with an average rating of 4.0 out of 5 starsGear Capacity:20 litersWeight:2.62 lbs
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Related Expert Advice articles
Types of packs
Backpacking packs can be 30 to 70-plus liters. To choose the right capacity, consider trip duration and the gear you’ll bring.
Backpack features
Think about the frame type, location of important pockets, padding and ventilation, among other things.
Backpack fit
Your pack should be correctly sized for your torso length (not overall height) and hip circumference. A fit-expert at an REI store can help.
Stay organized and travel like a pro with our favorite travel packs. Whether you're touring a modern city or visiting off-the-beaten-path parks, we’ve got you covered with travel backpacks available at REI, each hand-picked by staff.
Read full article: The 8 Best Travel Backpacks of 2025: Staff Picks
Learn how to measure torso length and hip size so you can get the right backpack size. Then, learn to adjust the straps for an ideal fit.
Learn the tricks for packing and hoisting your backpack, including ways to balance the load, organize gear and ensure essentials are handy.
Learn how to clean and care for your backpack so it performs better and lasts longer.
Learn what it takes to go solo backpacking, including how to manage risks, where to go and what gear to pack.