Baggallini Soho Backpack × 
Allegiant Air personal item
Yes.
Bag 15.8 x 11.5 x 5.5 in · Rule 18 x 14 x 8 in · medium confidence
Bag reviewed 2026-05-28 · Rule reviewed 2026-05-28
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Fit proof
Height
+2.3 in
Width
+2.5 in
Depth
+2.5 in
Rendered to scale from the reviewed dimensions above. Packed shape and gate enforcement can still change the outcome.
Why this answer
Baggallini Soho Backpack fits the published personal-item dimensions for this rule. Still measure the packed bag, including handles and wheels.
The selected rule is 18 x 14 x 8 in and the bag record is 15.8 x 11.5 x 5.5 in.
Next step
Baggallini Soho Backpack fits the reviewed Allegiant Air personal item rule on the available dimensions. Confirm color, stock, and retailer dimensions before buying.
Allegiant AirFits this rule with 1 inches of tightest margin.
1 in spare on height, the tightest side
17 x 13 x 6 in
Fits this rule with 0.1 inches of tightest margin.
0.1 in spare on depth, the tightest side
15.4 x 11.6 x 7.9 in
Fits this rule with 1 inches of tightest margin.
1 in spare on depth, the tightest side
16 x 12 x 7 in