personal item such as a briefcase, garment bag, laptop computer, purse or small backpack.

Your carry-on bag...must not be more than 9 x 14 x 22 inches (23 x 35 x 56 cm) or 45 linear inches* (114 linear cm)

maximum dimensions for your personal item, such as a shoulder bag, backpack, laptop bag or other small item, are 9 inches x 10 inches x 17 inches [36 inches total]

Baggage may not exceed 45 linear inches (or 115 cm) in combined length, width, and height. Baggage must fit easily in the Carry-on Baggage Check, which is located near the check-in counters and at the gate and is approximately 22" x 14" x 9"

1 purse, briefcase, camera bag, or diaper bag; or 1 laptop computer (computers cannot be checked and must be carried on); or 1 item of a similar or smaller size to those listed above.

including any handles and wheels

bag is no more than 45 inches
personal item is no more than 36 inches
when you add the length + width + height

cannot exceed any of the following measurements: 22" long x 14" wide x 9" tall

Up to 45 in/115 cm (14 x 9 x 22 in or 36 x 23 x 56 cm)

Personal items include a purse, briefcase or laptop bag.

maximum combined linear measurement (L + W + H) of the carry-on bag is 45 inches (115 cm) up to 14 in x 9 in x 22 in

one small personal article such as a briefcase, purse, day planner, small laptop computer