I'd recommend this packing strap to anyone with a silicone allergy or who just finds strapless packing uncomfortable. I wear it over my usual boxers and barely notice that it's there.
This packing strap has made daily life so much easier. I have sensory issues, and packing used to be a necessary but uncomfortable ordeal. This makes it fun, and can be worn over the underwear without irritating the skin or digging into the hips.
Perfectly tight Around my ass perking it up and giving a show of my package from the front :)