Why do Catholics believe Mary was without sin?

[ImmaculataFan]

Hi, I have some non Catholic friends who have recently been asking why we believe that Mary is perfect, and I have given them some arguments, but they’re still looking for more. What is the best argument for why Mary is perfect? Thanks!

 

[Devon_Caffran]

These links should give you the answers that you need. If you have any further questions or concerns that are not answered by this, please contact Catholic Answers directly.
**
Recommended Reading:**
About Mary…where in the Bible does it say…
Was Mary sinless throughout her entire life?
Do I have to believe Mary was sinless to be a Catholic?
Mary’s Sinless Nature
If Mary was sinless, why did she need a Savior?