I was concerned these may not fit as I am a 14H, but was happily surprised the XL was just right. They are soft and comfortable for sleeping which is the purpose I purchased them for. They are surprisingly supportive but only for light activity. The clips are easy to use one handed for nursing.
Only negatives - the moulded pads move around a bit (but easy to adjust or take out), and it would be even more comfortable and supportive for larger breast sizes if the straps were a little wider.