TREAT POUCH
HARNESS AND HEAD HALTER
Flagline Dog Harness With Handle This is a great harness for walking in woods or in wilderness because it has support for lifting the dog. I recommend it if you plan on truffle hunting with your dog.
Freedom No Pull Harness Good basic two point harness. Good for using with 6 position or double headed leash.
K9 Julius makes a good one. It’s easy to put on and is comfortable on the dog and you can buy patches to add to the harness, bonus!
BingPet small dog harness (paid link)- good for small dogs
LEASH
6 Position European Leash (paid link)
NOSE WORK
The following websites offer many types of supplies used in nose work.
Modern K9 Training 