This is a very important part of puppy choosing, as some families can have allergies.
When pups are born, we can tell straight away if puppy has a wool coat (best for allergy sufferers).
Fleece coats begin to develop slowly, we know by 5-6 weeks (also suitable for people with allergies).
Occasionally we will get a puppy or two that will be straighter hair coat or Hairy McLairy coat and will shed to some degree (we know these coats by 6 weeks of age).