Like humans, some dogs are better swimmers than others. And like all swimmers, they will eventually tire. Even a good swimmer might be disoriented from the shock of falling in the water. Most pet life jackets are designed to keep the animal in a horizontal swimming position. The UnderDOG is different. By moving 90% of the effective buoyancy under the chest and neck, the vest is designed to allow a more natural swim angle with the hind legs lower than the front.

UNDERDOG FEATURES:
Bright reinforced webbing carry handle & leash attachment point
500D Cordura fabric, same as used for USCG approved human vests
Cool mesh back and freedom of movement in the shoulder area 
Reflective panels for enhanced visibility 

Sizing:
Size      Chest      Weight
XS       12"-18"     2-12 lbs
S         18"-24"    12-24 lbs
M         24"-30"    24-60 lbs
L          27"-36"    60-90 lbs
XL        33"-44"    90-120 lbs