







Bigger journeys, one deep space
Check In Plus Navy Blue
Most suitcases split your space in half. The Check In Plus gives it all back: a top-opening 77-litre shell, wheel brakes, a large waterproof pocket and the built-in seat that carries a child or holds your bags.
Fast dispatch from our Melbourne warehouse, Australia-wide. NZ shipping on Carry On and Backpacks.
Zips, handles, wheels, stitching
Kids, teens and adults
Features
- Patented built-in seat, for children and adults, or a stable spot to stack extra bags
- 100 kg total capacity, luggage contents included
- Wheel brakes for added security while seated
- Top-opening design, opens vertically, less floor space in tight hotel rooms
- Fits bulky items like shoes, boots and jackets without compromise
- Large waterproof pocket for liquids
- Front pocket for quick access
- Integrated child safety belt
- Telescopic handle with four height settings
- Anti-scratch textured shell
- TSA-approved lock
- Limited lifetime warranty
Specifications
| Colour | Navy Blue |
| Design | Check In Plus |
| Dimensions | 65.5 × 46 × 33 cm |
| Capacity | 77 litres |
| Weight | 5.9 kg |
| Opening | Top-opening, one deep packing space, plus a front pocket |
| Lock | TSA-approved zip lock |
| Seat | Built-in, 100 kg total capacity |
| Child seatbelt | Included |
| Wheel brake | Yes |
| Materials | Hard shell polycarbonate · Seat polypropylene · Lining polyester |
| Warranty | Limited lifetime, via Coolkidz Australia |
| SKU | MIA-CIPN |
Delivery & returns
Australia-wide delivery with fast dispatch from our Melbourne warehouse. Returns under the store's refund policy. Warranty claims through the Coolkidz support portal.


Transform
Closed to ride-on in seconds.
Belt them in, hang the bag on the hook, and pull. On the Plus range the wheel brake holds the case still while your child climbs on.
Drag the handle to compare
Features, in pictures
What you are looking at.
Built-in seatRides a child or stacks your bags
Front pocketQuick access at the gate
Top opening77 litres, one deep space
Bag hookHands-free through the airport
Bigger journeys, one deep space
One deep space, bigger journeys.
The details
Anti-scratch texture. Made to be handled.
Baggage handlers, taxi boots, hotel corridors. The textured polycarbonate shell is designed to hide the scuffs of real travel, and the lifetime warranty covers the parts that matter.
Read the warrantyCompare models
Which checked case?
The one you are looking at is highlighted. Same seat rating across the range; the differences are how it opens and what it carries up front.
Full comparison| Check In | Check In Plus | |
|---|---|---|
| Opening | Centre | Top |
| Closure | Latch, TSA | Zip, TSA |
| Front pocket | ✕ | ✓ |
| Built-in seat | ✓ | ✓ |
| Child seatbelt | ✓ | ✓ |
| Wheel brake | ✕ | ✓ |
| Capacity | 77 L | 77 L |
| Weight | 6.5 kg | 5.9 kg |
Is the ride-on seat safe for children?
Yes, within its limits. The luggage has an aluminium frame rated to 100 kg and a wider base for stability, and the Carry On, Check In, Carry On Plus and Check In Plus include a built-in safety belt to secure your child. Children must be able to sit unassisted and should always be supervised by an adult. Use it on flat surfaces only, never on escalators or stairs.
What age can a child ride on MiaMily luggage?
MiaMily does not set a minimum age; the rule is that the child must be able to sit unassisted, be belted in, and be supervised. Most families use the ride-on from the toddler years. The 100 kg capacity means older kids and adults can sit on it too.
Does the Carry On Pro have a ride-on seat?
The Carry On Pro has a reinforced Sit Ready shell that supports up to 100 kg, so you can sit on it at the gate. It does not include the child seatbelt or the seat-back bag hook of the Carry On, Check In and Plus models, so it suits older kids, teens and adults rather than toddlers.
Can I use the seat as a high chair?
The Carry On Plus is designed so the built-in seat doubles as a high chair on the go, with the wheel brake keeping the case still while your child is seated. Always belt your child in and stay with them.
What happens to the seat when I travel without a child?
It becomes a bag holder. Hook or stack a nappy bag, tote or briefcase on the seat, or sit on it yourself during long waits.
What are the dimensions and weight of the Carry On?
Carry On: 51 × 38 × 29 cm including wheels (20 × 14.9 × 11.4 inches), 4.3 kg, 43 litres. It is the same footprint MiaMily describes as fitting most airline overhead compartments.



















