The 3:1:1 rule is the international regulation for transporting liquids, gels, and sprays in carry-ons for security checkpoints, both in airports and on cruises. Its name summarises what you should know: each number represents a specific condition you must meet to transport the liquid.
The first number, 3, refers to the limit on container size: liquid containers can’t exceed 100 milliliters (3.4 ounces). The second number, 1, indicates that all those containers should be stored in an airtight, see-through bag, like a Ziploc bag. And the third number, also 1, explains that passengers can only take one of these bags in their carry-on. The combination of the three requisites gives this rule its name.
WHAT LIQUIDS CAN YOU TAKE IN YOUR CARRY-ON

Under the 3:1:1 rule, you can take practically any liquids in your transparent bag, as long as the containers don’t exceed 100 ml. This includes shampoo, conditioner, shower gel, body lotion, perfume, mouthwash, toothpaste, gel or liquid deodorant, and sunscreen. The bag should be closed all the way without the containers sticking out, and we recommend it has an approximate capacity of a fourth of a gallon, so about 18 by 23 centimeters. Check out this honest guide to Disney cruises
It is important to remember that the rule doesn’t limit the number of containers you can take, as long as they all fit in the bag and no containers exceed the 100 ml limit. If you need larger quantities of a product, the easiest solution is to put it in your checked baggage, where there are no restrictions for liquids. Onboard and prepared, travel without setbacks, learn more here.
EXCEPTIONS YOU SHOULD BE FAMILIAR WITH

There are some exceptions to the 3:1:1 rule that are useful for those who travel with special needs. Liquid medications, breast milk, baby formulas, and food for special medical conditions can be over 100 ml, as long as you inform security personnel and, in some cases, if you have documentation for it. These don’t have to go inside the transparent bag, but they could be inspected separately.
PRACTICAL TIPS TO PACK EASILY
To avoid unnecessary setbacks, choose containers with screw caps instead of those that could leak during the flight or navigation. Label your containers so you don’t mix up similar products, and distribute the contents evenly so the bag is flat in your carry-on. If you have questions about a particular product, we recommend asking first or putting it in your checked baggage. These small details can make the difference between a smooth embarkation and a longer-than-needed waiting line.
TRAVEL INFORMED WITH ROYAL AT SEA AND ROYAL HOLIDAY CLUB
Knowing the 3:1:1 rule before packing your bags is one of those small details that make a big difference in the travel experience. With Royal Holiday Club and Royal at Sea’s backup, every detail of your next adventure is planned so you enjoy from the first minute, without setbacks or surprises.
Are you ready for your next trip? Pack with confidence and discover the available routes with Royal at Sea and Royal Holiday Club.

























































