"Unbleached cotton" refers to cotton fabric that has not been treated with any chemical bleach or whitening agents. It is in its natural, off-white color. Full definition
Size Large made of Organically grown unbleached cotton off - white edge stitch 13 - 40 pounds. (greenmountaindiapers.com)
The organic unbleached cotton bag is surprisingly roomy, fitting my daughter's entire lunch and snack for the day in it. (ecochildsplay.com)
Cotton Pre-Fold made by Happy Flute 100 % Soft Unbleached Cotton Muslin for softness and fast absorbency 4X6X4 layers 36.5 cm X 33.5 cm Sold individually (happybeehinds.com)