Best Lightweight Concealable Body Armor
For me, in this day and age, this is a no-brainer.
Don’t forget to have one for every member of the family and one in your VBOB (Vehicle Bug Out Bag) as well.
Although not considered a “concealable” vest, I still have two US Palm Defender Level IIIA Soft Vest I bought for me and the wife unit many moons ago.
I think they have been discontinued but you can still find them online.