Our NEO Dog Collar is a heavy duty, reflective locking nylon clasp dog collar. The collars are 2mm thick and very strong and made for the largest of dogs.  Its quality nylon webbing contains reflective stitching for improved nighttime visibility.  It features a lockable nylon clasp which prevents an accidental releasing of the latch when grabbing the collar. 
 
 
Size
Nylon Thickness
Collar Width
Collar Length
Extra Small
1.5 mm
1/2"
8.5" - 11"
Small
2 mm
3/4"
11" - 15"
Medium
2 mm
1"
14.5" - 19.5"
Large
2 mm
1"
17" - 25"