Delta 1131 luggage carry on? informations - Luggage & Travel

Larger items will be loaded into the cargo bin and tagged with a pink Gate Claim/Planeside tag due to the limited space under and above the seats. The passenger will receive their bags back when they disembark. The maximum size for any carry-on item is 22" x 14" x 9" and it must adhere to Federal Aviation Administration (FAA) restrictions.
For More information Read Here: https://www.delta.com/us/en/baggage/carry-on-baggage

Https://www.seatguru.com/airlines/Delta_Airlines/baggage.php

Quoting from link above:

"Delta Airlines (DL) allows 1 carry-on bag and 1 personal item (purse, briefcase, laptop bag) per passenger fee free.
Carry-on should not exceed the following size and weight restrictions:

• 45 linear inches (22 x 14 x 9 in) or 115 centimeters (56 x 36 x 23 cm) including handles and wheels.
• Fit in the overhead bin or under the seat in front of you.
• Personal item should be of proper size to fit under the seat in front of you
• A jacket, umbrella, diaper bag, duty free items, and assistive devices (wheelchairs, walkers, crutches, strollers, child restraint seats, etc.) do not count towards your carry-on allowance.