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Internal Frame Backpacks

(304 products)
Products (304)
Remove frame-type filter:Internal Frame
Sort: Best Match
    Top Rated
    DeuterSpeed Lite Pro 25 Pack - Men's
    $130.00
    14 reviews with an average rating of 4.5 out of 5 stars
    Gear Capacity:
    25 liters
    Weight:
    1.04 lbs
    Features:
    Reservoir Compatible
    Top Rated
    GregoryArrio 22 Pack
    $81.73
    Save 25%
    compared to  $109.95
    9 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    22 liters
    Weight:
    14.79 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    OspreyManta 24 Hydration Pack - Men's
    $149.93
    Save 25%
    compared to  $200.00
    28 reviews with an average rating of 4.4 out of 5 stars
    Gear Capacity:
    24 liters
    Liquid Capacity:
    2.5 liters
    Weight:
    3.33 lbs
    Features:
    Hipbelt Pockets
    Raincover Included
    New arrival
    GregoryZulu 28 LT Pack - Men's
    $134.73
    Save 25%
    compared to  $179.95
    0 reviews
    Gear Capacity:
    28 liters
    Weight:
    2.47 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
  • Sale Ends Feb 9
    Top Rated
    GregoryKatmai 65 Pack - Closeout - Men's Plus Sizes
    $153.73
    Save 50%
    compared to  $309.95
    16 reviews with an average rating of 4.9 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    5 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    MatadorBeast 18 Technical Pack
    $148.95
    18 reviews with an average rating of 4.5 out of 5 stars
    Gear Capacity:
    18 liters
    Weight:
    1.31 lbs
    Features:
    Reservoir Compatible
    Hyperlite Mountain GearSouthwest 70 Pack
    $450.00
    2 reviews with an average rating of 3.0 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    70 liters
    Weight:
    2.13 to 2.37 lbs
    Features:
    Ultralight
    Reservoir Compatible
    Top Rated
    NEMOResolve 25 L Endless Promise Technical Active Pack - Women's
    $125.93
    Save 30%
    compared to  $179.95
    20 reviews with an average rating of 4.9 out of 5 stars
    Gear Capacity:
    24 liters
    Weight:
    2.32 lbs
    Features:
    Reservoir Compatible
    Top Rated
    DeuterAircontact Core 60 + 10 SL Pack - Women's
    $181.93
    Save 30%
    compared to  $260.00
    18 reviews with an average rating of 4.7 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    70 liters
    Weight:
    4.54 lbs
    Features:
    Reservoir Compatible
    New arrival
    OspreyDownburst 34 Pack
    $239.73
    Save 25%
    compared to  $320.00
    3 reviews with an average rating of 4.7 out of 5 stars
    Gear Capacity:
    34 liters
    Weight:
    3.27 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    ExpedLightning 45 Pack - Men's
    $164.93
    Save 25%
    compared to  $219.95
    11 reviews with an average rating of 4.2 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    45 liters
    Weight:
    2.49 lbs
    Features:
    Ultralight
    Reservoir Compatible
    Hyperlite Mountain GearSouthwest 40 Pack
    $395.00
    0 reviews
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    40 liters
    Weight:
    1.82 to 1.94 lbs
    Features:
    Ultralight
    Reservoir Compatible
    Top Rated
    NEMOResolve 35 L Endless Promise Technical Active Pack - Women's
    $153.93
    Save 30%
    compared to  $219.95
    10 reviews with an average rating of 4.7 out of 5 stars
    Gear Capacity:
    35 liters
    Weight:
    2.72 lbs
    Features:
    Reservoir Compatible
    GregoryJuno 24 Pack - Women's
    $112.73
    Save 24%
    compared to  $149.95
    6 reviews with an average rating of 3.7 out of 5 stars
    Gear Capacity:
    24 liters
    Weight:
    1.93 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    OspreyKestrel 48 Pack - Men's
    $240.00
    23 reviews with an average rating of 4.5 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
  • Sale Ends Feb 9
    Top Rated
    GregoryKalmia 60 Pack - Closeout - Women's Plus Sizes
    $153.73
    Save 50%
    compared to  $309.95
    32 reviews with an average rating of 4.9 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 to 60 liters
    Weight:
    4.7 to 4.78 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    DeuterTrail 30 Pack - Men's
    $150.00
    12 reviews with an average rating of 4.2 out of 5 stars
    Gear Capacity:
    30 liters
    Weight:
    2.5 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    Top Rated
    GregoryKalmia 60 Pack - Women's
    $197.83
    Save 40%
    compared to  $329.95
    35 reviews with an average rating of 4.8 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 to 60 liters
    Weight:
    4.41 to 4.48 lbs
    Features:
    Reservoir Compatible
    REI Co-opTraverse 60 Pack - Men's
    $269.00
    8 reviews with an average rating of 3.8 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 to 62 liters
    Weight:
    4.5 to 4.81 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    GregoryMaven 55 Pack - Closeout - Women's
    $175.73
    Save 32% - 34%
    compared to  $259.95 - $269.95
    1 reviews with an average rating of 1.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    52 to 55 liters
    Weight:
    3.31 to 3.38 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    Hyperlite Mountain GearUnbound 40 Pack
    $385.00 - $405.00
    1 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    40 liters
    Weight:
    1.92 to 2.05 lbs
    Features:
    Ultralight
    Top Rated
    NEMOResolve 25 L Endless Promise Technical Active Pack - Men's
    $125.93
    Save 30%
    compared to  $179.95
    37 reviews with an average rating of 4.8 out of 5 stars
    Gear Capacity:
    25 liters
    Weight:
    2.4 lbs
    Features:
    Reservoir Compatible
    REI Co-opTraverse 60 Pack - Women's
    $269.00
    11 reviews with an average rating of 4.3 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 to 62 liters
    Weight:
    4.31 to 4.75 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI Co-opFlash Air 50 Pack - Women's
    $299.00
    33 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
    OspreySirrus 36 Pack - Women's
    $164.93
    Save 25%
    compared to  $220.00
    15 reviews with an average rating of 3.9 out of 5 stars
    Gear Capacity:
    36 liters
    Weight:
    3.15 lbs
    Features:
    Reservoir Compatible
    Raincover Included
  • Sale Ends Feb 9
    MammutNirvana 35 Snow Pack - Women's
    $109.73
    Save 45%
    compared to  $199.95
    0 reviews
    Gear Capacity:
    35 liters
    Weight:
    2.93 lbs
    REI OUTLET
    OspreyRenn 65 Pack - Womens
    $205.00
    8 reviews with an average rating of 4.3 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    65 liters
    Weight:
    3.6 to 3.79 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    Top Rated
    Black DiamondSpeed 30 Pack
    $219.95
    20 reviews with an average rating of 4.9 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    30 liters
    Weight:
    2.07 lbs
    Features:
    Ultralight
    MYSTERY RANCHRadix 57 Pack - Women's
    $208.93
    Save 30%
    compared to  $299.00
    2 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    59.6 liters
    Weight:
    3.83 lbs
    Features:
    Reservoir Compatible
  • Sale Ends Feb 9
    ALPS MountaineeringBoulder 30 Pack
    $63.73
    Save 50%
    compared to  $129.99
    2 reviews with an average rating of 4.5 out of 5 stars
    Gear Capacity:
    30 liters
    Weight:
    1.75 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
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