The TPU Zip-Top pouch has proved extremely popular with travelers. Its tough construction includes RF-welded seams and a water-resistant zipper - if you should experience leakage of your personal care products, the Zip-Top pouch will contain the spill.
The pouch is, of course, TSA-compliant.
Here's how to fill or refill the bottles included with the Zip-Top pouch:
The bottles included with the Pouch have an insert which has a small hole at the center
To fill/refill the bottles, this insert should be removed:
Once the bottle has been filled, replace the insert in the bottle opening - the insert engages with the bottle cap and creates a watertight seal (unlike a 'flip-top' cap, which is prone to spillage)
The bottles have a write-on label, so you can easily identify the contents.