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Internal Frame Backpacking Packs

(135 products)
Products (135)
Remove frame-type filter:Internal Frame
Sort: Best Match
    Top Rated
    GregoryKatmai 55 Pack - Men's
    $309.95
    18 reviews with an average rating of 4.8 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    50 to 55 liters
    Weight:
    4.48 to 4.61 lbs
    Features:
    Reservoir Compatible
    OspreyTalon Pro 40 Pack - Men's
    $260.00
    1 reviews with an average rating of 3.0 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    40 to 42 liters
    Weight:
    3.18 to 3.32 lbs
    Features:
    Reservoir Compatible
    ExpedLightning 60 Pack - Men's
    $249.95
    0 reviews
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    2.53 lbs
    Features:
    Ultralight
    GregoryParagon 70 Pack - Men's
    $319.95
    0 reviews
    Trip Length/Capacity:
    Multiday, Extended
    Gear Capacity:
    66 to 70 liters
    Weight:
    3.62 to 3.79 lbs
    Features:
    Reservoir Compatible
    GregoryParagon 50 Pack - Men's
    $269.95
    1 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    46 to 50 liters
    Weight:
    3.3 to 3.59 lbs
    Features:
    Reservoir Compatible
    GregoryStout 45 Plus-Size Pack - Men's
    $209.95
    2 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    45 liters
    Weight:
    3.14 lbs
    Features:
    Reservoir Compatible
    OspreyTempest 44 Pack - Women's
    $220.00
    0 reviews
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    44 liters
    Weight:
    3.32 to 3.45 lbs
    Features:
    Reservoir Compatible
    OspreyUNLTD AirScape 68 Pack - Women's
    $524.73
    Save 25%
    compared to  $700.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    2 reviews with an average rating of 4.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    64 to 68 liters
    Weight:
    5.82 to 6.01 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    GregoryZulu 65 Pack - Men's Plus Sizes
    $279.95
    2 reviews with an average rating of 3.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    63 to 65 liters
    Weight:
    4.02 to 4.46 lbs
    Features:
    Reservoir Compatible
    GregoryStout 70 Plus Pack - Men's
    $249.95
    1 reviews with an average rating of 4.0 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    70 liters
    Weight:
    3.98 lbs
    Features:
    Reservoir Compatible
    MYSTERY RANCHRadix 57 Pack - Women's
    $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
    GregoryFacet 55 Pack - Women's
    $269.95
    15 reviews with an average rating of 3.9 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    52 to 58 liters
    Weight:
    2.45 to 2.67 lbs
    Features:
    Ultralight
    Reservoir Compatible
    OspreyAriel Pro 75 Pack - Women's
    $400.00
    1 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    75 liters
    Weight:
    4.64 to 4.74 lbs
    Features:
    Reservoir Compatible
    GregoryAmber 44 Pack - Women's
    $209.95
    0 reviews
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    44 liters
    Weight:
    2.8 lbs
    Features:
    Reservoir Compatible
    ExpedLightning 60 Pack - Women's
    $249.95
    0 reviews
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    2.4 lbs
    Features:
    Ultralight
    GregoryJade 63 Pack - Women's
    $279.95
    11 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 to 63 liters
    Weight:
    4.25 to 4.32 lbs
    Features:
    Reservoir Compatible
  • Sale Ends Jul 7
    Hyperlite Mountain GearSouthwest 40 Pack
    $296.59 - $313.59
    Save 15%
    compared to  $349.00 - $369.00
    33 reviews with an average rating of 4.2 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    40 liters
    Weight:
    2.03 to 2.18 lbs
    Features:
    Ultralight
    Reservoir Compatible
    OspreyAce 50 Pack - Kids'
    $190.00
    0 reviews
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    50 liters
    Weight:
    3.63 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    New arrival
    Mountain HardwearPCT 50 L Pack - Women's
    $209.73
    Save 25%
    compared to  $280.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    3 reviews with an average rating of 4.0 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    50 liters
    Weight:
    4.08 to 4.11 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    OspreyUNLTD AirScape 68 Pack - Women's
    $524.93
    Save 25%
    compared to  $700.00
    3 reviews with an average rating of 3.7 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    64 liters
    Weight:
    6.01 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    MammutDucan Spine 28-35 Pack
    $168.73
    Save 24%
    compared to  $224.95
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    5 reviews with an average rating of 4.2 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    35 liters
    Weight:
    3.09 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    Top Rated
    GregoryDeva 80 Pro Pack - Women's
    $419.95
    7 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    75 to 85 liters
    Weight:
    5.18 to 5.58 lbs
    Features:
    Reservoir Compatible
    Top Rated
    GregoryKalmia 60 Pack - Women's
    $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
  • Sale Ends Jul 7
    GregoryWander 50 Pack - Kids'
    $149.89
    Save 25%
    compared to  $199.95
    2 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    50 liters
    Weight:
    3.2 lbs
    Features:
    Reservoir Compatible
  • Sale Ends Jul 7
    Top Rated
    GregoryWander 70 Pack - Kids'
    $164.89
    Save 25%
    compared to  $219.95
    14 reviews with an average rating of 4.7 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    70 liters
    Weight:
    3.4 lbs
    Features:
    Reservoir Compatible
  • Sale Ends Jul 7
    Hyperlite Mountain GearSouthwest 70 Pack
    $361.19
    Save 15%
    compared to  $425.00
    17 reviews with an average rating of 4.4 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    70 liters
    Weight:
    2.46 lbs
    Features:
    Ultralight
    Reservoir Compatible
    GregoryKalmia 50 Pack - Women's
    $309.95
    11 reviews with an average rating of 4.4 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    45 to 50 liters
    Weight:
    4.3 to 4.37 lbs
    Features:
    Reservoir Compatible
    GregoryAmber 44 Plus Pack - Women's
    $209.95
    3 reviews with an average rating of 4.7 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    44 liters
    Weight:
    2.8 lbs
    Features:
    Reservoir Compatible
    GregoryMaven 48 Pack - Women's
    $269.95
    1 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    44 to 48 liters
    Weight:
    3.12 to 3.2 lbs
    Features:
    Reservoir Compatible
    New arrival
    ALPS MountaineeringCaldera 75 Pack
    $187.73
    Save 24%
    compared to  $249.99
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    0 reviews
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    75 liters
    Weight:
    5.69 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
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