For this brand is the band size the same as the ribcage measurement?
Yes. The band is always your ribcage measurement under your bust. If you measure an odd number, try both sizes around it (but adjust the cup accordingly). My measurement is 31.5 and I fit consistently in a 32. I'm also a 32G in US brands, but lately fitting best in a 32FF in UK brands like Panache. It's the cup sizing that gets all wonky between manufacturers.
2 years, 5 months ago