ChampionChampion Women's Shock Absorber S5044 Ultimate Run Bra Sports Bra

I'm a 38c (according to uk bra charts) but the size guide that accompanies this item states i'm a 42d. which size do i get?

Hi i am a size 34 gg what size do u recommend

Is it difficult to put on and take off

I have got heavy boobs and my M&S bra size is 34F but not sure which one to pick it up in Shock Absorber.. Pls advise