This type is the most widely used collar amongst the dog owners as they are most readily available and seem most comfortable for the dog to wear. their material ranges from nylon, leather and cloth.
Pro: This is the most advisable collar for tie-outs (tying a dog for a short duration) because it has the least chance for a dog to hurt himself by mistake.
Con: A common error that dog owners make is letting their dog wear this for extremely long duration of times up-to weeks and some even forever. This can potentially cause skin conditions in their dogs and they can become indifferent to being controlled with a flat collar.