Brand: Tanzilla Harness Supply
 
The Raven Belt is a lightweight breathable belt designed for canicross that works equally well for hiking, walking and skijor.  
It features a mesh-backed padded waistbelt with a mesh body secured in a nylon webbing frame to maintain ultimate breathability while staying both light and sturdy.
 
Legstraps with clips keep the belt low on the hips for stablility and to prevent lower back strain while the adjustable pullstrap directs the pull force of your dog across the lower hips/buttocks.  If you have a strong dog, this can create the feeling of being lifted forward rather than being pulled along.  The pull strap has a free moving 1 1/4" metal ring attachment point for your dogs line which allows the dog to go around curvy trails while keeping the belt securely in place.  
A highly water resistant pocket sits on the back for any essentials like keys/phone/dog treats while two reflective strips keep you visible on late night runs.