In 2026, EasyJet remains exceptionally strict with their "one small under-seat bag" policy for standard fare passengers. The allowed dimensions are strictly 45 x 36 x 20 cm (including handles and wheels), and if your bag does not fit completely inside the "sizing gauge" at the gate, you will be charged a "Gate Bag Fee" that can range from £40 to £55. Gate agents are trained to spot "overstuffed" backpacks and small rolling suitcases that exceed the depth limit. Because EasyJet sells "Upfront" and "Extra Legroom" seats that do include an overhead locker bag, they closely monitor standard passengers to ensure they aren't "sneaking" bags into the bins. A "pro-tip" for 2026 is to use a soft-sided "cabin-max" style bag rather than a hard shell, as it can be compressed into the sizer if needed. Also, remember that "one bag" means one bag—if you have a handbag or a laptop case, it must be placed inside your main under-seat bag before you reach the front of the boarding line, or you may be forced to pay the upgrade fee on the spot.