TSA-APPROVED CARRY ON SIZE. Perfect for your next adventure! At 3.3 oz?? these bottles will hold everything you need for your trip?? while still staying within carry-on guidelines. We've added a bonus clear plastic carry case to your purchase for your traveling convenience. Compare to GoTube.</br>NO MORE LEAKS. There's nothing worse than opening your suitcase and finding your shampoo has leaked all over your wardrobe. We've taken care of this issue with a lid that only releases contents when you firmly squeeze the