It's a pattern of 'Tanabata'(the star festival in Japan).
Japanese people write their wishes on a small card.

'Tenugui' is a type of traditional Japanese towel.
Characteristics of tenugui are various usages.
For example, drying hands or bodies, wrapping a lunch box and more.
You'll be able to find your own way of using it. 
※The edges unfinished and will tend to unravel. Don't pull loose threads.
There is a possibility of fade.