Activity for Krys

My dress has a mild V-back and a plunging neckline with lace straps so I'll need a strapless, low-back bra/bodysuit for under my dress. Neither are super deep, but looking for something supportive. Any recommendations?

So I am doing a wedding in colorado, but have family all over the US. When.should I be sending out invitations? Do I need to do save the date as well? Also curious whether I should put our pictures or just a pretty picture on them...