Pay it Forward has been claimed: Arcteryx v-neck polyester tee shirt, men's medium, 22" across the armpits and 27" back length. I don't know the model, but it is a heavier weave, about like Cap2/3, weighs 6.5oz on my scale, shows minor wear. $3 shipping to US addresses.
The PIF rules:
1. The item offered is free but you must pay shipping.
2. You must also "Pay it Forward" by posting something free (must be worth the cost of shipping).
3. Your "Pay it Forward" offer must come with the same terms as this one.
4. Your "Pay it Forward" buyer must also post their own "Pay it Forward" item.
5. Your "Pay it Forward" buyer must also require the next buyer to post their own "Pay it Forward" item (copy and paste these rules into your PIF post).