Your purchase of a Vortex® Adjustable Waterproof Dog Collar (MSRP: $24.99) or standard Vortex® Adjustable Dog Collar (MSRP: $19.99) via the Vortex® website during this special charitable promotion will directly support the work being done by The United States War Dog Association. All dog collar proceeds will go directly to USWDA to help their work supporting the military K-9 community.