EdT fragrances are less concentrated and generally don't last all day. The 30-ml packaging is small enough for you to bring in your carry-on on a plane.
From Cult Beauty
Escentric Molecules Molecule 04 Travel Size Refill
Beautycos
Escentric Molecules, Molecules 04 EDT REFILL 30 ml
This product is also available at 1 unverified store.