FOR EUGENIA - i asked at NN what the crotch width of the Fuzzibunz pockets are, so you can work out if they are ok for your DD, and here is the reply i got:

fuzzibunz large have a crotch width of 15-16cm, I?ve never seen an XL so can?t tell you what the difference is, though I would actually expect it to be the same measurement across the crotch as the large.