This is a Nagoya obi
with zestful white 'Ume' (plum blossom) motif, which is dyed.
Textile is soft silk.
*Background color may seem uneven on photos, but it is actually one tone of color as seen in HTML code*
Blackish stains near Maegara should not show when tied, but if they bother you, you can start wrapping the obi from your left tummy to right(Rotate obi clockwise).
Stains near Otaiko pattern are light, but they come lower right corner of Otaiko bow when tied, and they may be noticed. (first photo below the drawing image) Patinas below the Otaiko pattern are light and will not show when tied.
Please see photos for details.
If you do not mind the small flaws mentioned, it can continue to be worn.