Boarding Sizer · 2026
● Conditional
Cotopaxi Allpa 35L on British Airways
Bag 20×12×10" vs sizer 22.0×17.7×9.8"
≈
Tight Fit
Overhead Carry-On Verdict
Fits, if packed soft.
🎒 Backpacker's tip: The Cotopaxi Allpa 35L is soft-shell, so its depth runs ~1.5" over British Airways's limit — but it squeezes into the metal sizer fine as long as you don't over-stuff the front pockets.
Personal Item · Under-Seat
✕ Too big
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Route
BRI · COT
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Dimension Breakdown
inches
| Axis | Bag | Sizer | Margin |
|---|---|---|---|
| Length | 20" | 22.0" | +2.0" |
| Width | 12" | 17.7" | +5.7" |
| Height | 10" | 9.8" | -0.2" |
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