A clamp has been sewn in at the back, which can be used to mount the bag on a suitcase. This will make it easy to move around with both a suitcase and a bag. Keep calm and don't worry about possible costs for imprecise size of hand luggage.
CARRYON CABIN SHOULDER Bag 40x30x20 Aircraft Hand Luggage Yellow
Aerolite (40x20x25cm) New and Improved 2024 Ryanair Maximum Size
CarryOn Cabin Bag Backpack 40x25x20 Aircraft Hand Luggage Leaves
Cabin Bag 45x36x20 for New Easyjet, Underseat Cabin Luggage Bags
MATEIN Cabin Bags 40x20x25 for Ryanair Underseat, Carry On Travel
CarryOn Cabin Bag Backpack 40x30x20 Aircraft Hand Luggage Leaves
Aerolite Ryanair Maximum Size 40x20x25cm Hand Cabin Luggage
CarryOn Cabin Bag Backpack 40x25x20 Aircraft Hand Luggage Leaves
CarryOn Cabin Bag Backpack 40x25x20 Aircraft Hand Luggage Leaves
Designed for Ryanair Cabin Bags 40x20x25 Underseat Hand Luggage
CarryOn Cabin Bag Backpack 40x30x20 Aircraft Hand Luggage Leaves
Aerolite Ryanair Maximum Size 40x20x25cm Hand Cabin Luggage