So I'm decidedly in need of a keepall. BUT I just found out that the damier 50 doesn't come with a strap (WTF!!) so should I just get the monogram with the strap? I just love the way the damier looks on the keepall. It's not as showy and seems like it would hold up to travel a lot better. However, I'm a small gal, so I don't think I could lug around the damier if it didn't have a strap (and I know for sure that the 55 is too big for me). Which one should I get??