Size 1” Large adjusts 26' to 32' around the girth. Approximate weight of 45lb to 80lb. Please take a girth/circumference of chest measurement to determine what size you need.US Patent: 7,165,511 Jessica MacDonald designed & patented the Freedom No-Pull Harness and co-owns USA Dog Shop.

The Freedom No Pull Harness is effective because of the back training & communication loop. In addition to the back training loop the Freedom No Pull Harness features a secondary front attachment for re-direction. The training leash can be purchased separately or as part of the training package allows you to to connect to the front and back of the harness simultaneously. The harness is extremely effective for training and minimizes the effect of pulling for several reasons:

• tightening effect of the loop on the harness
• the location of the loop
• the reconfigurable design that allows you to attach to only the back or to the front and back of the harness simultaneously. The patented tensioning loop located behind the dog's neck on the FREEDOM No-Pull Harness is designed to gently tighten around the dog's chest as the dog pulls. The harness does not work from creating pain instead the harness works with the dog in a very natural manner. As the dog pulls the harness tightens around the structure of the dog. When the dog stops pulling the harness provides immediate positive feedback by releasing the slight tension. Leash is sold separate. Available Sizes: XSM-Chest 14'-20', SM-Chest 18'-24', MD-Chest 22'-28', LG-Chest 26'-32', XLG-Chest 30'-38', 2XLG-Chest 34'-44'.