JoCee Hello!
I don't know how much or little poly is acceptable.
Unless someone knows I would say don't send them to soldiers in harms way. When t - shirts were discussed the concensus was that burn wounds are worse with poly and less with cotton.
Give the poly underwear to a charity.
We have been known to buy a whole clearence rack when $1 or $2 a 3 pack.
We give new white underwear to the soup kitchen in Lincoln Nebraska where many homeless gather to stay warm in the winter and they always welcome new underwear and socks.
The dark colors we send to our troops.
That way we are helping Vets abroad and also here at home.
Veterans clear back from WWII are still suffering from the memories of conflict.
We can make a difference for them by just being there willing to listen when they need to talk.
There are many ways for us to help.
If we become educated in what helps them with their PTSD we will be able to guide our friends to some resolution or relief.
Be mindful of the variety of America's many beautiful cultures.
Native American soldiers suffer just as much as any but they had sweat lodges in their culture to exercise their demons. Some have told me that saved them while their comrades drank themselves to death.
Different cultures have different methods. If we find a variety then we will be able to offer a spectrum of help.
If any of your soldiers mention PTSD please contact me to talk and I will share what I have found and am still searching.
Blessings, door