This project is worked in round throughout the work and uses granny stripes pattern, it is 
done for small water bottles and cups for a bigger size, you must increase the flat circle in 
the beginning, means in the third round, you make 1 space with cluster and the next space 
with double cluster (cluster, ch1, cluster all in the same space)
 
Crochet hook: 4 MM 
Measurements
23/ 13 cm the bottle holder
45 cm is the strap.