Does the Cotopaxi Allpa 35L fit American's carry-on bag limit?

Only if it is not packed full. The Cotopaxi Allpa 35L is listed 1.0 in deeper than the American carry-on bag limit (22 × 14 × 9 in (56 × 36 × 23 cm)), and fine on height and width. Packed less full, a soft pack gets thinner.

American limit 22 × 14 × 9 in (56 × 36 × 23 cm) · American baggage page, checked 2026-10-26Cotopaxi Allpa 35L 22 × 12 × 10 in (56 × 30 × 25 cm) · maker’s page

Cotopaxi Allpa 35L in the American sizer

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FRONTSIDE14 in wide9 in deep22 in tall
American carry-on bag limitCotopaxi Allpa 35L, as listedDrawn to scale
FRONTSIDE14 in wide8 in deep18 in tall
American · Personal item

Cotopaxi Allpa 35L

Too bigNo. The Cotopaxi Allpa 35L is larger than the American personal item limit of 18 × 14 × 8 in (45 × 35 × 20 cm) in height and depth: height −4.0 in, width +2.0 in, depth −2.0 in.
LimitBagRoomHeight, in1822−4.0 inWidth, in1412+2.0 inDepth, in810−2.0 inWeight, kgnone1.33—

Must fit under the seat in front of you.

Other bags for American

Allpa 35L on other airlines

AirlineVerdict
DeltaFits if not packed full
UnitedFits if not packed full
SouthwestFits
JetBlueFits if not packed full
SpiritFits
FrontierFits
AllegiantFits
RyanairToo big
All 18 airlines for the Allpa 35L

Questions

Is the Cotopaxi Allpa 35L allowed as American carry-on bag?

Only if it is not packed full. The Cotopaxi Allpa 35L is listed 1.0 in deeper than the American carry-on bag limit (22 × 14 × 9 in (56 × 36 × 23 cm)), and fine on height and width. Packed less full, a soft pack gets thinner.

Is the Cotopaxi Allpa 35L allowed as American personal item?

No. The Cotopaxi Allpa 35L is larger than the American personal item limit of 18 × 14 × 8 in (45 × 35 × 20 cm) in height and depth: height −4.0 in, width +2.0 in, depth −2.0 in.