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Internal Frame Backpacks

(297 products)
Products (297)
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    REI Co-opTrail 25 Pack
    $99.95
    190 reviews with an average rating of 4.4 out of 5 stars
    Gear Capacity:
    25 liters
    Weight:
    1.81 to 1.87 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    Top Rated
    OspreySirrus 24 Pack - Women's
    $134.73
    Save 25%
    compared to  $180.00
    7 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    24 liters
    Weight:
    2.56 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    GregoryBaltoro 65 Pack - Closeout - Men's
    $243.73
    Save 30%
    compared to  $349.95
    110 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 to 65 liters
    Weight:
    4.72 to 4.92 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    REI Co-opFlash 55 Pack - Men's
    $229.00
    92 reviews with an average rating of 4.2 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    53 to 57 liters
    Weight:
    2.75 to 2.87 lbs
    Features:
    Ultralight
    Reservoir Compatible
    OspreyAtmos AG 65 Pack - Men's
    $370.00
    152 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    65 to 68 liters
    Weight:
    4.61 to 4.81 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI Co-opTrail 40 Pack - Men's
    $159.00
    56 reviews with an average rating of 4.4 out of 5 stars
    Gear Capacity:
    40 to 41 liters
    Weight:
    2.75 to 3 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    Top Rated
    DeuterAircontact Core 65 + 10 Pack - Men's
    $194.73
    Save 25%
    compared to  $260.00
    13 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    75 liters
    Weight:
    5.16 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    REI Co-opTrail 40 Pack - Women's
    $159.00
    31 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    40 to 41 liters
    Weight:
    2.56 to 2.87 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    OspreyEja 58 Pack - Women's
    $285.00
    71 reviews with an average rating of 4.4 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 to 58 liters
    Weight:
    2.72 to 2.82 lbs
    Features:
    Reservoir Compatible
    REI Co-opFlash 55 Pack - Women's
    $229.00
    83 reviews with an average rating of 4.3 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    53 to 57 liters
    Weight:
    2.62 to 2.75 lbs
    Features:
    Ultralight
    Reservoir Compatible
    New arrival
    MountainsmithZerk 40 Pack
    $164.73
    Save 26%
    compared to  $224.95
    0 reviews
    Gear Capacity:
    40 liters
    Weight:
    1.87 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    REI Co-opFlash Air 50 Pack - Women's
    $299.00
    36 reviews with an average rating of 3.9 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    49 to 51 liters
    Weight:
    1.75 to 1.87 lbs
    Features:
    Ultralight
    Reservoir Compatible
    Top Rated
    OspreyTalon 22 Pack - Men's
    $175.00
    74 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    22 liters
    Weight:
    2.38 to 2.98 lbs
    Features:
    Reservoir Compatible
    GregoryParagon 68 Pack
    $158.73
    Save 47%
    compared to  $299.95
    4 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    68 liters
    Weight:
    3.57 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    Hyperlite Mountain GearUnbound 40 Pack
    $385.00 - $405.00
    4 reviews with an average rating of 4.8 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    40 liters
    Weight:
    1.92 to 2.05 lbs
    Features:
    Ultralight
    Top Rated
    REI Co-opTrailmade 60 Pack - Women's
    $189.00
    9 reviews with an average rating of 4.7 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    3.19 to 3.31 lbs
    Features:
    Reservoir Compatible
    GregoryDeva 60 Pack - Closeout - Women's
    $208.73 - $276.73
    Save 25% - 40%
    compared to  $349.95 - $369.95
    9 reviews with an average rating of 4.3 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 to 65 liters
    Weight:
    4.61 to 4.96 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    Top Rated
    GregoryJuno 30 H2O Hydration Pack - Women's
    $199.95
    68 reviews with an average rating of 4.5 out of 5 stars
    Gear Capacity:
    30 liters
    Liquid Capacity:
    3 liters
    Weight:
    2.06 lbs
    Features:
    Hipbelt Pockets
    REI Co-opTrailmade 60 Pack - Men's
    $106.83
    Save 40%
    compared to  $179.00
    13 reviews with an average rating of 4.3 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    3.69 lbs
    Features:
    Reservoir Compatible
    REI Co-opTrailmade 60 Pack - Women's
    $106.83
    Save 40%
    compared to  $179.00
    7 reviews with an average rating of 4.4 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    3.62 lbs
    Features:
    Reservoir Compatible
    Top Rated
    OspreyKestrel 48 Pack - Men's
    $240.00
    31 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    46 to 48 liters
    Weight:
    4.44 to 4.62 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    GregoryKalmia 60 Pack - Women's
    $246.73
    Save 25%
    compared to  $329.95
    5 reviews with an average rating of 3.6 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 to 60 liters
    Weight:
    4.41 to 4.48 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    Top Rated
    OspreyTempest 22 Pack - Women's
    $175.00
    62 reviews with an average rating of 4.7 out of 5 stars
    Gear Capacity:
    22 liters
    Weight:
    2.38 to 2.98 lbs
    Features:
    Reservoir Compatible
    Top Rated
    REI Co-opTrailmade 60 Pack - Men's
    $189.00
    12 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    3.31 to 3.5 lbs
    Features:
    Reservoir Compatible
    Top Rated
    GregoryBaltoro 75 Pack - Closeout - Men's
    $299.73
    Save 25%
    compared to  $399.95
    81 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    70 to 75 liters
    Weight:
    4.8 to 5 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    Top Rated
    OspreyHikelite 26 Pack
    $135.00
    8 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    26 liters
    Weight:
    1.8 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    GregoryZulu 30 Pack - Men's
    $199.95
    69 reviews with an average rating of 4.4 out of 5 stars
    Gear Capacity:
    30 liters
    Weight:
    3.04 to 3.12 lbs
    Features:
    Reservoir Compatible
    Top Rated
    OspreyStratos 34 Pack - Men's
    $149.73
    Save 25%
    compared to  $200.00
    76 reviews with an average rating of 4.8 out of 5 stars
    Gear Capacity:
    34 liters
    Weight:
    3.15 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    Hyperlite Mountain GearSouthwest 55 Pack
    $420.00
    8 reviews with an average rating of 3.9 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 liters
    Weight:
    1.86 to 2.04 lbs
    Features:
    Ultralight
    Reservoir Compatible
    NEMOPersist 30 L Endless Promise All-Adventure Pack - Women's
    $229.95
    4 reviews with an average rating of 4.8 out of 5 stars
    Gear Capacity:
    30 liters
    Weight:
    3.07 lbs
    Features:
    Reservoir Compatible
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