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Internal Frame Backpacking Packs
(134 products)Products (134)
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- REI Co-opTrailmade 60 Pack - Men's$124.93Save 30%compared to $179.00Trip Length/Capacity:MultidayGear Capacity:60 litersWeight:3.38 to 3.69 lbsFeatures:Reservoir Compatible
- REI Co-opTrailmade 60 Pack - Women's$124.93Save 30%compared to $179.00Trip Length/Capacity:MultidayGear Capacity:60 litersWeight:3.25 to 3.62 lbsFeatures:Reservoir Compatible
- GregoryBaltoro 75 Pack - Men'sTop Rated$227.83Save 40%compared to $379.95Trip Length/Capacity:Extended, MultidayGear Capacity:70 to 80 litersWeight:4.8 to 5.4 lbsFeatures:Reservoir Compatible
- GregoryBaltoro 65 Pack - Men's$209.83Save 40%compared to $349.95Trip Length/Capacity:Multiday, ExtendedGear Capacity:60 to 70 litersWeight:4.72 to 5.25 lbsFeatures:Reservoir Compatible
- GregoryParagon 48 Pack - Men's$179.73Save 21% - 25%compared to $229.95 - $239.95Trip Length/Capacity:WeekendGear Capacity:48 litersWeight:3.5 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - REI Co-opFlash 55 Pack - Men's$229.00Trip Length/Capacity:MultidayGear Capacity:53 to 57 litersWeight:2.75 to 2.87 lbsFeatures:Ultralight
Reservoir Compatible - DeuterAircontact Core 65 + 10 Pack - Men'sTop Rated$181.93Save 30%compared to $260.00Trip Length/Capacity:Extended, MultidayGear Capacity:75 litersWeight:4.96 lbsFeatures:Reservoir Compatible
- OspreyAether 65 Pack - Men'sTop Rated$370.00Trip Length/Capacity:MultidayGear Capacity:65 to 68 litersWeight:4.92 to 4.96 lbsFeatures:Reservoir Compatible
Raincover Included - OspreyAtmos AG 65 Pack - Men's$370.00Trip Length/Capacity:MultidayGear Capacity:65 to 68 litersWeight:4.61 to 4.81 lbsFeatures:Reservoir Compatible
Raincover Included - OspreyEja 58 Pack - Women's$285.00Trip Length/Capacity:MultidayGear Capacity:55 to 58 litersWeight:2.72 to 2.82 lbsFeatures:Reservoir Compatible
- GregoryMaven 45 Pack - Closeout - Women's$179.73Save 21% - 25%compared to $229.95 - $239.95Trip Length/Capacity:WeekendGear Capacity:42 to 45 litersWeight:3.25 to 3.31 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - REI Co-opFlash 55 Pack - Women's$229.00Trip Length/Capacity:MultidayGear Capacity:53 to 57 litersWeight:2.62 to 2.75 lbsFeatures:Ultralight
Reservoir Compatible - OspreyExos 58 Pack - Men's$285.00Trip Length/Capacity:MultidayGear Capacity:58 to 61 litersWeight:2.84 to 2.94 lbsFeatures:Reservoir Compatible
- REI Co-opFlash Air 50 Pack - Men's$299.00Trip Length/Capacity:Weekend, MultidayGear Capacity:49 to 51 litersWeight:1.81 to 1.94 lbsFeatures:Ultralight
Reservoir Compatible - REI Co-opTarn 40 Pack - Kids'Top Rated$129.00Trip Length/Capacity:WeekendGear Capacity:40 litersWeight:2.44 lbsFeatures:Reservoir Compatible
- OspreyAtmos AG 50 Pack - Men'sTop Rated$350.00Trip Length/Capacity:Weekend, MultidayGear Capacity:50 to 53 litersWeight:4.32 to 4.51 lbsFeatures:Reservoir Compatible
Raincover Included - Hyperlite Mountain GearSouthwest 55 Pack$420.00Trip Length/Capacity:MultidayGear Capacity:55 litersWeight:1.86 to 2.04 lbsFeatures:Ultralight
Reservoir Compatible - GregoryParagon 58 Pack - Closeout - Men's$202.73Save 22% - 24%compared to $259.95 - $269.95Trip Length/Capacity:MultidayGear Capacity:55 to 58 litersWeight:3.5 to 3.56 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - OspreyKyte 48 Pack - Women'sTop Rated$240.00Trip Length/Capacity:WeekendGear Capacity:46 to 48 litersWeight:4 to 4.25 lbsFeatures:Reservoir Compatible
Raincover Included - GregoryBaltoro 75 Pack - Closeout - Men'sTop Rated$262.73Save 24%compared to $349.95Trip Length/Capacity:Extended, MultidayGear Capacity:70 to 75 litersWeight:4.8 to 5 lbsFeatures:Reservoir CompatibleREI OUTLET
- GregoryDeva 60 Pack - Women'sTop Rated$209.83Save 40%compared to $349.95Trip Length/Capacity:MultidayGear Capacity:55 to 65 litersWeight:4.61 to 4.96 lbsFeatures:Reservoir Compatible
- GregoryBaltoro 65 Pack - Closeout - Men's$247.73Save 24%compared to $329.95Trip Length/Capacity:MultidayGear Capacity:60 to 65 litersWeight:4.72 to 4.92 lbsFeatures:Reservoir CompatibleREI OUTLET
- REI Co-opTraverse 60 Pack - Men's$269.00Trip Length/Capacity:MultidayGear Capacity:60 to 62 litersWeight:4.5 to 4.81 lbsFeatures:Reservoir Compatible
Raincover Included - DeuterAircontact Core 45 + 10 SL Pack - Women's$167.93Save 30%compared to $240.00Trip Length/Capacity:MultidayGear Capacity:55 litersWeight:4.31 lbsFeatures:Reservoir Compatible
- GregoryParagon 68 Pack$217.73Save 24%compared to $289.95Trip Length/Capacity:MultidayGear Capacity:68 litersWeight:3.57 to 3.62 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - REI Co-opTrailmade 60 Pack - Men's$189.00Trip Length/Capacity:MultidayGear Capacity:60 litersWeight:3.31 to 3.5 lbsFeatures:Reservoir Compatible
- GregoryKatmai 65 Pack - Closeout - Men's Plus SizesTop Rated$199.73Save 35%compared to $309.95Trip Length/Capacity:MultidayGear Capacity:60 litersWeight:5 lbsFeatures:Reservoir CompatibleREI OUTLET
- GregoryDeva 70 Pack - Closeout - Women's$262.73Save 24%compared to $349.95Trip Length/Capacity:Multiday, ExtendedGear Capacity:65 to 75 litersWeight:4.7 to 5.1 lbsFeatures:Reservoir CompatibleREI OUTLET
- ALPS MountaineeringNomad RT 75 Pack$209.73Save 25%compared to $279.99Trip Length/Capacity:ExtendedGear Capacity:85 litersWeight:5.56 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - OspreyRenn 65 Pack - Womens$205.00Trip Length/Capacity:MultidayGear Capacity:65 litersWeight:3.6 to 3.79 lbsFeatures:Reservoir Compatible
Raincover Included - OspreyAura AG 65 Pack - Women's$370.00Trip Length/Capacity:MultidayGear Capacity:62 to 65 litersWeight:4.47 to 4.6 lbsFeatures:Reservoir Compatible
Raincover Included - Hyperlite Mountain GearUnbound 40 Pack$385.00 - $405.00Trip Length/Capacity:WeekendGear Capacity:40 litersWeight:1.92 to 2.05 lbsFeatures:Ultralight
- GregoryDeva 70 Pack - Women'sTop Rated$227.83Save 40%compared to $379.95Trip Length/Capacity:Multiday, ExtendedGear Capacity:65 to 75 litersWeight:4.7 to 5.1 lbsFeatures:Reservoir Compatible
- GregoryKalmia 60 Pack - Closeout - Women's$199.73Save 35%compared to $309.95Trip Length/Capacity:MultidayGear Capacity:55 to 60 litersWeight:4.41 to 4.48 lbsFeatures:Reservoir CompatibleREI OUTLET
- OspreyAtmos AG LT 65 Pack - Men's$320.00Trip Length/Capacity:MultidayGear Capacity:65 to 68 litersWeight:4.07 to 4.24 lbsFeatures:Reservoir Compatible
Raincover Included - GregoryMaven 55 Pack - Closeout - Women's$202.73Save 22% - 24%compared to $259.95 - $269.95Trip Length/Capacity:MultidayGear Capacity:52 to 55 litersWeight:3.31 to 3.38 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - GregoryDeva 60 Pack - Closeout - Women'sTop Rated$247.73Save 24%compared to $329.95Trip Length/Capacity:MultidayGear Capacity:55 to 65 litersWeight:4.61 to 4.96 lbsFeatures:Reservoir CompatibleREI OUTLET
- Helly HansenCapacitor Pack RECCO$193.73Save 35%compared to $300.00Trip Length/Capacity:MultidayGear Capacity:65 litersWeight:4.16 lbsFeatures:Reservoir CompatibleREI OUTLET
- OspreyKestrel 48 Pack - Men'sTop Rated$240.00Trip Length/Capacity:WeekendGear Capacity:46 to 48 litersWeight:4.44 to 4.62 lbsFeatures:Reservoir Compatible
Raincover Included - OspreyEja 48 Pack - Women's$265.00Trip Length/Capacity:WeekendGear Capacity:45 to 48 litersWeight:2.67 to 2.76 lbsFeatures:Reservoir Compatible
- ExpedLightning 45 Pack - Men's$164.93Save 25%compared to $219.95Trip Length/Capacity:WeekendGear Capacity:45 litersWeight:2.49 lbsFeatures:Ultralight
Reservoir Compatible - GregoryJade 43 Pack - Women's$171.93 - $249.95Trip Length/Capacity:WeekendGear Capacity:41 to 43 litersWeight:3.4 lbsFeatures:Reservoir Compatible
- Hyperlite Mountain GearSouthwest 70 Pack$450.00Trip Length/Capacity:Extended, MultidayGear Capacity:70 litersWeight:2.13 to 2.37 lbsFeatures:Ultralight
Reservoir Compatible - DeuterAircontact Core 60 + 10 SL Pack - Women'sTop Rated$181.93Save 30%compared to $260.00Trip Length/Capacity:Extended, MultidayGear Capacity:70 litersWeight:4.54 lbsFeatures:Reservoir Compatible
- GregoryMaven 65 Pack - Closeout - Women's$217.73Save 22%compared to $279.95Trip Length/Capacity:MultidayGear Capacity:62 to 65 litersWeight:3.44 to 3.5 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - OspreyAether Plus 100 Pack - Men's$490.00Trip Length/Capacity:ExtendedGear Capacity:98 to 100 litersWeight:6.39 to 6.69 lbsFeatures:Reservoir Compatible
Raincover Included - REI Co-opTraverse 60 Pack - Women's$269.00Trip Length/Capacity:MultidayGear Capacity:60 to 62 litersWeight:4.31 to 4.75 lbsFeatures:Reservoir Compatible
Raincover Included - OspreyAether 55 Pack - Men's$350.00Trip Length/Capacity:MultidayGear Capacity:55 to 58 litersWeight:5.03 to 5.06 lbsFeatures:Reservoir Compatible
Raincover Included - Hyperlite Mountain GearSouthwest 40 Pack$395.00Trip Length/Capacity:WeekendGear Capacity:40 litersWeight:1.82 to 1.94 lbsFeatures:Ultralight
Reservoir Compatible - GregoryParagon 60 Pack - Men'sTop Rated$299.95Trip Length/Capacity:MultidayGear Capacity:56 to 60 litersWeight:3.53 to 3.73 lbsFeatures:Reservoir Compatible
- NEMOPersist 45 L Endless Promise All-Adventure Pack - Men'sTop Rated$259.95Trip Length/Capacity:WeekendGear Capacity:44 litersWeight:3.7 lbsFeatures:Reservoir Compatible
- Mountain HardwearAMG 75 PackTop Rated$470.00Trip Length/Capacity:Extended, MultidayGear Capacity:75 to 78 litersWeight:4.82 to 4.96 lbsFeatures:Reservoir Compatible
- OspreyAtmos AG LT 50 Pack - Men'sTop Rated$300.00Trip Length/Capacity:Weekend, MultidayGear Capacity:50 to 53 litersWeight:4 to 4.18 lbsFeatures:Reservoir Compatible
Raincover Included - OspreyAriel 55 Pack - Women'sTop Rated$350.00Trip Length/Capacity:MultidayGear Capacity:52 to 55 litersWeight:4.77 to 4.82 lbsFeatures:Reservoir Compatible
Raincover Included - REI Co-opPassage 55+10 Pack - Kids'$189.00Trip Length/Capacity:MultidayGear Capacity:65 litersWeight:3.25 lbsFeatures:Reservoir Compatible
- OspreyTalon 44 Pack - Men's$240.00Trip Length/Capacity:WeekendGear Capacity:44 to 48 litersWeight:3.46 to 3.57 lbsFeatures:Reservoir Compatible
- REI Co-opFlash Air 50 Pack - Women's$299.00Trip Length/Capacity:Weekend, MultidayGear Capacity:49 to 51 litersWeight:1.75 to 1.87 lbsFeatures:Ultralight
Reservoir Compatible - OspreyExos 48 Pack - Men'sTop Rated$265.00Trip Length/Capacity:Weekend, MultidayGear Capacity:48 to 51 litersWeight:2.77 to 2.85 lbsFeatures:Reservoir Compatible
- Mountain HardwearKazam 60 Pack$315.00Trip Length/Capacity:MultidayGear Capacity:60 litersWeight:2.56 to 2.65 lbsFeatures:Ultralight
Reservoir Compatible - OspreyAura LT 65 Pack - Women's$320.00Trip Length/Capacity:MultidayGear Capacity:63 to 65 litersWeight:3.84 to 4.01 lbsFeatures:Reservoir Compatible
Raincover Included - OspreyAura AG LT 50 Pack - Women's$300.00Trip Length/Capacity:Weekend, MultidayGear Capacity:48 to 50 litersWeight:3.79 to 3.97 lbsFeatures:Reservoir Compatible
Raincover Included - OspreyExos Pro 55 Pack - Men's$330.00Trip Length/Capacity:MultidayGear Capacity:55 to 58 litersWeight:2.08 to 2.16 lbsFeatures:Reservoir Compatible
- GregoryFocal 48 Pack - Men's$249.95Trip Length/Capacity:Weekend, MultidayGear Capacity:44 to 52 litersWeight:2.54 to 2.76 lbsFeatures:Ultralight
Reservoir Compatible - GregoryKatmai 65 Pack - Men'sNew arrival$246.73Save 25%compared to $329.95Trip Length/Capacity:MultidayGear Capacity:65 litersWeight:4.68 to 4.74 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - OspreyAriel 65 Pack - Women's$370.00Trip Length/Capacity:MultidayGear Capacity:62 to 65 litersWeight:4.85 to 4.89 lbsFeatures:Reservoir Compatible
Raincover Included - GregoryKalmia 60 Pack - Closeout - Women's Plus SizesTop Rated$199.73Save 35%compared to $309.95Trip Length/Capacity:MultidayGear Capacity:55 to 60 litersWeight:4.7 to 4.78 lbsFeatures:Reservoir CompatibleREI OUTLET
- MammutDucan Spine 28-35 Pack - Women's$145.73Save 35%compared to $224.95Trip Length/Capacity:WeekendGear Capacity:35 litersWeight:3.09 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - ALPS MountaineeringNomad RT 38 Pack$164.73Save 25%compared to $219.99Trip Length/Capacity:WeekendGear Capacity:42 litersWeight:4.37 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - GregoryBaltoro 85 Pro Pack - Men'sTop Rated$293.93Save 30%compared to $419.95Trip Length/Capacity:Extended, MultidayGear Capacity:80 litersWeight:5.29 lbsFeatures:Reservoir Compatible
- ALPS MountaineeringFactor 40 Pack$134.73Save 25%compared to $179.99Trip Length/Capacity:WeekendGear Capacity:40 litersWeight:2.88 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - GregoryKatmai 65 Pack - Men'sTop Rated$246.93Save 25%compared to $329.95Trip Length/Capacity:MultidayGear Capacity:60 to 65 litersWeight:4.67 to 4.74 lbsFeatures:Reservoir Compatible
- Mountain HardwearKazam 45 Pack$295.00Trip Length/Capacity:WeekendGear Capacity:45 litersWeight:2.47 to 2.56 lbsFeatures:Ultralight
Reservoir Compatible - OspreyAriel Plus 70 Pack - Women'sTop Rated$450.00Trip Length/Capacity:Multiday, ExtendedGear Capacity:68 to 70 litersWeight:5.54 to 5.8 lbsFeatures:Reservoir Compatible
Raincover Included - Black DiamondBeta Light 45 PackTop Rated$429.95Trip Length/Capacity:WeekendGear Capacity:45 litersWeight:1.98 to 2.09 lbsFeatures:Ultralight
Reservoir Compatible - OspreyTempest 44 Pack - Women's$240.00Trip Length/Capacity:WeekendGear Capacity:42 to 44 litersWeight:3.32 to 3.45 lbsFeatures:Reservoir Compatible
- GregoryZulu 45 Pack - Men's$249.95Trip Length/Capacity:WeekendGear Capacity:43 to 45 litersWeight:3.52 to 3.71 lbsFeatures:Reservoir Compatible
- GregoryParagon 70 Pack - Men's$319.95Trip Length/Capacity:Multiday, ExtendedGear Capacity:66 to 70 litersWeight:3.62 to 3.79 lbsFeatures:Reservoir Compatible
- GregoryParagon 50 Pack - Men's$279.95Trip Length/Capacity:Weekend, MultidayGear Capacity:46 to 50 litersWeight:3.3 to 3.59 lbsFeatures:Reservoir Compatible
- OspreyAura AG 50 Pack - Women's$350.00Trip Length/Capacity:Weekend, MultidayGear Capacity:47 to 50 litersWeight:4.16 to 4.29 lbsFeatures:Reservoir Compatible
Raincover Included - OspreyAether Plus 85 Pack - Men's$480.00Trip Length/Capacity:ExtendedGear Capacity:83 to 85 litersWeight:6.08 to 6.35 lbsFeatures:Reservoir Compatible
Raincover Included - REI Co-opTrailmade 60 Pack - Women's$189.00Trip Length/Capacity:MultidayGear Capacity:60 litersWeight:3.19 to 3.31 lbsFeatures:Reservoir Compatible
- OspreyKestrel 58 Pack - Men'sTop Rated$260.00Trip Length/Capacity:MultidayGear Capacity:56 to 58 litersWeight:4.7 to 4.88 lbsFeatures:Reservoir Compatible
Raincover Included - OspreyAce 50 Pack - Kids'$210.00Trip Length/Capacity:Weekend, MultidayGear Capacity:50 litersWeight:3.63 lbsFeatures:Reservoir Compatible
Raincover Included - OspreyTalon Pro 40 Pack - Men's$280.00Trip Length/Capacity:WeekendGear Capacity:40 to 42 litersWeight:3.18 to 3.32 lbsFeatures:Reservoir Compatible
- ALPS MountaineeringExpedition 75 Pack$202.73Save 24%compared to $269.99Trip Length/Capacity:Extended, MultidayGear Capacity:75 litersWeight:5.56 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET - GregoryZulu 65 Pack - Men's$299.95Trip Length/Capacity:MultidayGear Capacity:63 to 65 litersWeight:4.21 to 4.73 lbsFeatures:Reservoir Compatible
- OspreyAether Plus 70 Pack - Men'sTop Rated$450.00Trip Length/Capacity:Multiday, ExtendedGear Capacity:68 to 70 litersWeight:5.61 to 6.17 lbsFeatures:Reservoir Compatible
Raincover Included - GregoryFocal 58 Pack - Men'sTop Rated$269.95Trip Length/Capacity:MultidayGear Capacity:54 to 62 litersWeight:2.58 to 2.8 lbsFeatures:Ultralight
Reservoir Compatible - OspreyTempest Pro 40 Pack - Women's$280.00Trip Length/Capacity:WeekendGear Capacity:38 to 40 litersWeight:2.86 to 3.01 lbsFeatures:Reservoir Compatible
- ALPS MountaineeringCaldera 75 Pack$187.73Save 24%compared to $249.99Trip Length/Capacity:Extended, MultidayGear Capacity:75 litersWeight:5.69 lbsFeatures:Reservoir Compatible
Raincover IncludedREI OUTLET
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