Collars are constructed with Polypropylene Webbing, Black Plastic Contour Buckles, Black Plastic Tri-Glides & Metal D-Rings.

Leashes are constructed with Polypropylene Webbing & Metal Trigger Swivel Snap Hooks.

Most Collars & Leashes are Machine Washable and Dryer Safe.  If they are made with Cotton fabric you are good to go.  If they are a ribbon use your judgement as with any garment as to hand or machine wash.