To measure your horse for a blanket, start at the center of your horse’s chest and run a cloth tape measure along his side to the center of tail. Include the widest part of his shoulder, and keep the tape measure level and taut (we suggest having a friend help you). Take this measurement and deduct 4"/10cm, this is your horses true measurement. If you are in between sizes go up.
A well-fitting blanket will keep your horse warm and comfy, but an ill-fitting blanket can restrict movement, cause rubs, shift, or get tangled. Test the blanket’s fit by watching your horse walk and graze in it. These natural movements will highlight flaws in the fit.