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Internal Frame Backpacks

(196 products)
Products (196)
Remove frame-type filter:Internal Frame
Sort: Best Match
    Top Rated
    DeuterSpeed Lite 21 Pack
    $85.00
    21 reviews with an average rating of 4.7 out of 5 stars
    Gear Capacity:
    21 liters
    Weight:
    1.04 lbs
    Features:
    Reservoir Compatible
    ALPS MountaineeringBaja 40 Pack
    $102.73
    Save 35%
    compared to  $159.99
    1 reviews with an average rating of 1.0 out of 5 stars
    Gear Capacity:
    40 liters
    Weight:
    2.38 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
  • Sale Ends May 25
    GregoryZulu 30 Pack - Men's
    $149.89
    Save 25%
    compared to  $199.95
    66 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
  • Sale Ends May 25
    Top Rated
    REI Co-opTrailmade 60 Pack - Women's
    $141.69
    Save 25%
    compared to  $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
    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
    OspreyDownburst 26 Pack
    $224.73
    Save 25%
    compared to  $300.00
    1 reviews with an average rating of 5.0 out of 5 stars
    Gear Capacity:
    26 liters
    Weight:
    3.2 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
  • Sale Ends May 25
    GregoryZulu 45 Pack - Men's
    $187.39
    Save 25%
    compared to  $249.95
    42 reviews with an average rating of 4.2 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    43 to 45 liters
    Weight:
    3.52 to 3.71 lbs
    Features:
    Reservoir Compatible
  • Sale Ends May 25
    Top Rated
    GregoryParagon 70 Pack - Men's
    $239.89
    Save 25%
    compared to  $319.95
    5 reviews with an average rating of 4.8 out of 5 stars
    Trip Length/Capacity:
    Multiday, Extended
    Gear Capacity:
    66 to 70 liters
    Weight:
    3.62 to 3.79 lbs
    Features:
    Reservoir Compatible
  • Sale Ends May 25
    OspreyAura AG 65 Pack - Women's
    $277.49
    Save 25%
    compared to  $370.00
    51 reviews with an average rating of 4.3 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    62 to 65 liters
    Weight:
    4.47 to 4.6 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    OspreyMira 24 Hydration Pack - Women's
    $220.00
    5 reviews with an average rating of 4.2 out of 5 stars
    Gear Capacity:
    24 liters
    Liquid Capacity:
    2.5 liters
    Weight:
    3.28 lbs
    Features:
    Hipbelt Pockets
    Raincover Included
    Mountain HardwearKazam 60 Pack
    $315.00
    20 reviews with an average rating of 4.2 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    2.56 to 2.65 lbs
    Features:
    Ultralight
    Reservoir Compatible
  • Sale Ends May 25
    REI Co-opTraverse 60 Pack - Men's
    $201.69
    Save 25%
    compared to  $269.00
    10 reviews with an average rating of 3.7 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
    NEMOResolve 25 L Endless Promise Technical Active Pack - Women's
    $124.73
    Save 30%
    compared to  $179.95
    11 reviews with an average rating of 4.2 out of 5 stars
    Gear Capacity:
    24 liters
    Weight:
    2.32 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
  • Sale Ends May 25
    Black DiamondCirque Ultra 25 Snow Pack
    $277.39
    Save 25%
    compared to  $369.95
    0 reviews
    Gear Capacity:
    25 liters
    Weight:
    1.9 lbs
    Top Rated
    OspreySirrus 24 Pack - Women's
    $200.00
    5 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    24 liters
    Weight:
    3.23 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    OspreyAce 50 Pack - Kids'
    $210.00
    3 reviews with an average rating of 4.3 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    50 liters
    Weight:
    3.63 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    Top Rated
    GregoryKatmai 65 Pack - Closeout - Men's Plus Sizes
    $215.73
    Save 30%
    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
  • Sale Ends May 25
    REI Co-opTraverse 60 Pack - Women's
    $201.69
    Save 25%
    compared to  $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
    OspreyRaptor Pro 18 Hydration Pack - Men's
    $153.73
    Save 45%
    compared to  $280.00
    4 reviews with an average rating of 4.0 out of 5 stars
    Gear Capacity:
    18 liters
    Liquid Capacity:
    2.5 liters
    Weight:
    3.31 lbs
    Features:
    Hipbelt Pockets
    REI OUTLET
  • Sale Ends May 25
    GregoryJade 43 Pack - Women's
    $187.39
    Save 25%
    compared to  $249.95
    33 reviews with an average rating of 4.1 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    41 to 43 liters
    Weight:
    3.4 lbs
    Features:
    Reservoir Compatible
    Top Rated
    OspreyManta 34 Hydration Pack - Men's
    $240.00
    7 reviews with an average rating of 5.0 out of 5 stars
    Gear Capacity:
    34 liters
    Liquid Capacity:
    2.5 liters
    Weight:
    3.54 lbs
    Features:
    Hipbelt Pockets
    Raincover Included
    Only at REI
    DeuterAircontact Core 45 + 10 SL Pack - Women's
    $280.00
    0 reviews
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 liters
    Weight:
    4.75 lbs
    Features:
    Reservoir Compatible
  • Sale Ends May 25
    GregoryJade 28 Pack - Women's
    $149.89
    Save 25%
    compared to  $199.95
    49 reviews with an average rating of 4.0 out of 5 stars
    Gear Capacity:
    28 liters
    Weight:
    2.92 to 3.05 lbs
    Features:
    Reservoir Compatible
    NEMOResolve 35 L Endless Promise Technical Active Pack - Men's
    $152.73
    Save 30%
    compared to  $219.95
    2 reviews with an average rating of 4.5 out of 5 stars
    Gear Capacity:
    37.5 liters
    Weight:
    2.89 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    OspreyKyte 48 Pack - Women's
    $240.00
    23 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    46 to 48 liters
    Weight:
    4 to 4.25 lbs
    Features:
    Reservoir Compatible
    Raincover Included
  • Sale Ends May 25
    GregoryZulu 65 Pack - Men's Plus Sizes
    $224.89
    Save 25%
    compared to  $299.95
    7 reviews with an average rating of 4.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    63 to 65 liters
    Weight:
    4.02 to 4.46 lbs
    Features:
    Reservoir Compatible
    GregoryKalmia 60 Pack - Closeout - Women's
    $215.73
    Save 30%
    compared to  $309.95
    4 reviews with an average rating of 5.0 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 OUTLET
    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
    GregorySalvo 8 H2O Hydration Pack
    $75.73
    Save 45%
    compared to  $139.95
    2 reviews with an average rating of 4.0 out of 5 stars
    Gear Capacity:
    8 liters
    Liquid Capacity:
    3 liters
    Weight:
    1.78 lbs
    Features:
    Hipbelt Pockets
    REI OUTLET
    Top Rated
    GregoryKatmai 65 Pack - Men's
    $231.73
    Save 25%
    compared to  $309.95
    10 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    65 liters
    Weight:
    4.68 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
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