12.75-15.75" Midnight River on Navy Blue Biothane

This collar has holes at every half-inch from 12.75" to 15.75" (7 total), and it is 1" wide. This is the River design - to order one in a different colour or size, please visit https://dognerddesigns.com/the-river/ 

Beta Biothane is a waterproof material with the look and feel of leather. This collar can be washed with soap and water any time it gets dirty - so go ahead, take it on your muddy forest run!