Bear spray to deter wolves- not so much.

"At least seven wolves surrounded the three women and their dogs as they jogged on Artillery Road. The lead wolves came within feet, circling the women as they tried to get away. They were only slightly deterred by pepper spray.

“I was rainbowing my pepper spray, and they fell back a little bit,” said Camas Barkemeyer. “But as soon as we would turn our backs to try to go, they would run up on us, and we would turn around and start screaming again, and I would spray my pepper spray."

http://www.seattletimes.com/seattle-news...near-anchorage/

The dog attacked was an American Bulldog. They can run 115 lbs.