Benefits of binding with sports bras:
You can do it around even conservative/hateful people because it's "just a bra"
It can be cooler than longer styles of binding (tank or half)
Um you can try it out without having to buy anything else (if you own sports bras)
Drawbacks of binding with sports bras:
It won't achieve as flat of a look, particularly for larger chests
It can be warmer (due to multiple layers) compared to short style binder (not tank or half)
It can be dysphoric since bras are normally sold as being "for women"
ALSO if you don't know the dangers, you can really hurt yourself (true of any binding but I personally don't see a lot of people talking about how sports bra binding is binding and safety rules apply. I don't know if it's the exact same rules though because how tight sports bra binding actually is can vary from various factors like size, number of bras, etc.)
