CollieBall is rated 4.8 out of 5 stars by 1,265 verified buyers. 89% of customers give CollieBall 5 stars. Owners of Border Collies, Australian Shepherds, German Shepherds, Belgian Malinois, Corgis, Rottweilers and Pit Mixes consistently praise the military-grade ballistic fabric, the double-zipper design, and how quickly their dogs took to herding it. The most common words across reviews: durable, instinct, calmer, worth it.