LIGHT DUTY BOOTS ARE IDEAL FOR: Dog parks, dog pools, snow, grass runs and dog shoes to protect paws from chemicals and hot or cold temperatures. Also to keep dogs from licking natural dog paw balm, cream, or soother. RUGGED: Tough anti-slip sole of dog boots provides stability and traction, protection from sharp thorns and hot pavement. QUALITY: The dog boots have a rugged sole and high quality fabrics that are then sewn together to ensure they are ready for your adventure. Size:S-(60.5-68cm/23.8-26.8in M-(70-82cm/27.6-32.3in) L-80-93cm/31.5-36.6inThe length in brackets refers to the distance between the front left foot and the right foot. For best fit, measure dog paws and refer to the size guide. The width of dog paw should be less than the width of dog booties. These boots are relatively flexible and roomy, so a snug fit is better. If dog's paws are in between 2 sizes and if you've chosen the larger one, you could try to use socks for dog inside the boots.