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Does Knack Bags Series 2 Small Expandable Backpack fit JetBlue?

This page compares the bag dimensions we have against one published airline rule, renders the fit to scale, and keeps the caveats visible.

Personal item

Knack Bags Series 2 Small Expandable Backpack

Fits

Knack Bags Series 2 Small Expandable Backpack fits the published personal-item dimensions for this rule. Still measure the packed bag, including handles and wheels.

Visual sizer

Bag vs airline rule

Fits

Fits exactly at the published limit. No spare room on the tightest side.

Scaled fit visualizationFits exactly at the published limit. No spare room on the tightest side.Bag size17 x 12.5 x 5 inRule size17 x 13 x 8 inRule width 13 inRule length 17 inBag width 12.5 inBag length 17 inDepth: Bag 5 in / Rule 8 in

Fits. No spare room on the tightest side.

Height

Exact limit

Bag 17 in / Rule 17 in

Width

Spare room +0.5 in

Bag 12.5 in / Rule 13 in

Depth

Spare room +3 in

Bag 5 in / Rule 8 in

  • info: Blue Basic includes personal item and fare context matters
Bag
17 x 12.5 x 5 in
Rule
17 x 13 x 8 in
Risk
8/100
Confidence
high

Margins: length 0 in, width 0.5 in, depth 3 in.

Bag data

Audited dimensions
Last reviewed
2026-05-29
Dimension confidence
high
Primary source
manufacturer

Airline rule data

Airline-published rule
Last reviewed
2026-05-28
Rule confidence
high
View bag detailsView airline rulesSuggest correction

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Osprey Daylite Expandable Travel Pack 26+6

Fits

Osprey Daylite Expandable Travel Pack 26+6 fits the published personal-item dimensions for this rule. Still measure the packed bag, including handles and wheels.

Bag
17 x 13 x 6 in
Rule
17 x 13 x 8 in
Risk
8/100
Confidence
high

Margins: length 0 in, width 0 in, depth 2 in.

Bag details

Personal item

CabinZero Classic Cabin Backpack 28L

Fits

CabinZero Classic Cabin Backpack 28L fits the published personal-item dimensions for this rule. Still measure the packed bag, including handles and wheels.

Bag
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Rule
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Risk
8/100
Confidence
high

Margins: length 1.6 in, width 1.4 in, depth 0.1 in.

Bag details

Personal item

CALPAK Luka 15 inch Laptop Backpack

Fits

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Bag
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Rule
17 x 13 x 8 in
Risk
8/100
Confidence
high

Margins: length 1 in, width 1 in, depth 1 in.

Bag details