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Internal Frame Backpacks

(198 products)
Products (198)
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  • Sale Ends May 25
    REI Co-opTrail 25 Pack
    $74.89
    Save 25%
    compared to  $99.95
    175 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
  • Sale Ends May 25
    REI Co-opFlash Air 50 Pack - Men's
    $224.19
    Save 25%
    compared to  $299.00
    47 reviews with an average rating of 4.0 out of 5 stars
    Trip Length/Capacity:
    Weekend, Multiday
    Gear Capacity:
    49 to 51 liters
    Weight:
    1.81 to 1.94 lbs
    Features:
    Ultralight
    Reservoir Compatible
  • Sale Ends May 25
    OspreyExos 58 Pack - Men's
    $213.69
    Save 25%
    compared to  $285.00
    95 reviews with an average rating of 4.2 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    58 to 61 liters
    Weight:
    2.84 to 2.94 lbs
    Features:
    Reservoir Compatible
  • Sale Ends May 25
    REI Co-opFlash 55 Pack - Men's
    $171.69
    Save 25%
    compared to  $229.00
    89 reviews with an average rating of 4.1 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
    Top Rated
    OspreyKestrel 38 Pack - Men's
    $156.73
    Save 25%
    compared to  $210.00
    25 reviews with an average rating of 4.9 out of 5 stars
    Gear Capacity:
    36 liters
    Weight:
    4.07 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
  • Sale Ends May 25
    Top Rated
    GregoryParagon 60 Pack - Men's
    $224.89
    Save 25%
    compared to  $299.95
    10 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    56 to 60 liters
    Weight:
    3.53 to 3.73 lbs
    Features:
    Reservoir Compatible
  • Sale Ends May 25
    Top Rated
    REI Co-opTrail 40 Pack - Women's
    $119.19
    Save 25%
    compared to  $159.00
    30 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
    Top Rated
    GregoryKalmia 50 Pack - Women's
    $200.73
    Save 35%
    compared to  $309.95
    5 reviews with an average rating of 4.8 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
    Raincover Included
    REI OUTLET
  • Sale Ends May 25
    REI Co-opTrail 40 Pack - Men's
    $119.19
    Save 25%
    compared to  $159.00
    54 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
  • Sale Ends May 25
    OspreyExos Pro 55 Pack - Men's
    $247.49
    Save 25%
    compared to  $330.00
    36 reviews with an average rating of 4.0 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    55 to 58 liters
    Weight:
    2.08 to 2.16 lbs
    Features:
    Reservoir Compatible
  • Sale Ends May 25
    REI Co-opFlash 55 Pack - Women's
    $171.69
    Save 25%
    compared to  $229.00
    81 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
  • Sale Ends May 25
    Top Rated
    REI Co-opTrailmade 60 Pack - Men's
    $141.69
    Save 25%
    compared to  $189.00
    11 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    60 liters
    Weight:
    3.31 to 3.5 lbs
    Features:
    Reservoir Compatible
  • Sale Ends May 25
    REI Co-opFlash Air 50 Pack - Women's
    $224.19
    Save 25%
    compared to  $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
    GregoryDeva 60 Pack - Closeout - Women's
    $208.73
    Save 40%
    compared to  $349.95
    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
    REI OUTLET
    Top Rated
    OspreySirrus 24 Pack - Women's
    $134.73
    Save 25%
    compared to  $180.00
    6 reviews with an average rating of 4.5 out of 5 stars
    Gear Capacity:
    24 liters
    Weight:
    2.56 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    REI OUTLET
    OspreyTempest 20 Pack - Women's
    $111.73
    Save 30%
    compared to  $160.00
    162 reviews with an average rating of 4.1 out of 5 stars
    Gear Capacity:
    20 liters
    Weight:
    2.21 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
    Top Rated
    OspreyAether 65 Pack - Men's
    $370.00
    104 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Multiday
    Gear Capacity:
    65 to 68 liters
    Weight:
    4.92 to 4.96 lbs
    Features:
    Reservoir Compatible
    Raincover Included
    Hyperlite Mountain GearSouthwest 40 Pack
    $395.00
    3 reviews with an average rating of 4.7 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    40 liters
    Weight:
    1.82 to 1.94 lbs
    Features:
    Ultralight
    Reservoir Compatible
  • Sale Ends May 25
    Top Rated
    OspreyTempest 22 Pack - Women's
    $131.19
    Save 25%
    compared to  $175.00
    50 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
    GregoryDeva 70 Pack - Closeout - Women's
    $226.73
    Save 40%
    compared to  $379.95
    59 reviews with an average rating of 4.5 out of 5 stars
    Trip Length/Capacity:
    Multiday, Extended
    Gear Capacity:
    65 to 75 liters
    Weight:
    4.7 to 5.1 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
  • Sale Ends May 25
    Top Rated
    REI Co-opTarn 40 Pack - Kids'
    $96.69
    Save 25%
    compared to  $129.00
    15 reviews with an average rating of 5.0 out of 5 stars
    Trip Length/Capacity:
    Weekend
    Gear Capacity:
    40 liters
    Weight:
    2.44 lbs
    Features:
    Reservoir Compatible
  • Sale Ends May 25
    Top Rated
    OspreyTalon 22 Pack - Men's
    $131.19
    Save 25%
    compared to  $175.00
    60 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
  • Sale Ends May 25
    OspreyAtmos AG 65 Pack - Men's
    $277.49
    Save 25%
    compared to  $370.00
    145 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
    GregoryMaven 55 Pack - Closeout - Women's
    $187.73
    Save 30%
    compared to  $269.95
    5 reviews with an average rating of 4.0 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
  • Limited time only! The R E I Co-op Mastercard.

    Get $130 in value

    When approved for the REI Co-op Mastercard by May 25, you’ll get $30 in card rewards. Plus, you can earn a $100 REI gift card after your first non-REI purchase within 60 days from account opening. Terms apply.

    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
    REI OUTLET
  • Sale Ends May 25
    OspreyEja 58 Pack - Women's
    $213.69
    Save 25%
    compared to  $285.00
    70 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
    Top Rated
    GregoryBaltoro 75 Pack - Closeout - Men's
    $264.73
    Save 30%
    compared to  $379.95
    81 reviews with an average rating of 4.6 out of 5 stars
    Trip Length/Capacity:
    Extended, Multiday
    Gear Capacity:
    70 liters
    Weight:
    4.8 lbs
    Features:
    Reservoir Compatible
    REI OUTLET
  • Sale Ends May 25
    Top Rated
    REI Co-opTraverse 35 Pack - Men's
    $134.19
    Save 25%
    compared to  $179.00
    14 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    35 liters
    Weight:
    3.25 to 3.5 lbs
    Features:
    Reservoir Compatible
    Raincover Included
  • Sale Ends May 25
    Top Rated
    REI Co-opTraverse 35 Pack - Women's
    $134.19
    Save 25%
    compared to  $179.00
    10 reviews with an average rating of 4.6 out of 5 stars
    Gear Capacity:
    35 liters
    Weight:
    3.19 to 3.44 lbs
    Features:
    Reservoir Compatible
    Raincover Included
  • 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
1–30 of 198 products
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