Specialist products.

The yellow dog scheme

Warning jackets
Enable other owners at a distance to understand your dog is either training, or has behavioural issues that require gentle & careful handling, so to give them room & not allow their dogs to jump on them.
 

Bandanas as well as little jackets are also available

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So are bandanas and vests with other messages. From information about temprement, to informing you of medical conditions such as blind, deaf or diabetic!