So Pretty Shower caps are generously oversized as a standard fit. (Check out the "About my Shower Caps" page for a photo example).
But sometimes even this is not enough!! Now a shower cap is available that is glamourous to wear rather than resorting to a plastic shopping bag!
This XL size is recommended for extremely long (eg lower back) / unusually thick hair, or to accommodate dreadlocks to middle back.
The ribbon bow is wider ribbon to complete the larger look :)