- Natural and non-irritating dog collar: suitable for dogs with allergies or sensitive. Handmade from natural hemp and cotton fibers, our collars are both sustainable and renewable, minimizing our carbon footprint on the planet. Collars and leashes for dogs 2. SOFT, STRONG BUT LIGHTWEIGHT NATURAL BOHEMIAN COLLAR: Outer layer made of pure hemp fiber, strong, durable and naturally durable. The inner cotton liner is a soft webbing that not only keeps your dog comfortable, but is also breathable and absorbent 3. Organically Grown, Renewable: Hemp requires no fertilizers or pesticides and provides 4 high-yielding crops per year, making it environmentally and economically efficient. Hemp plants produce more oxygen and absorb 4 times more carbon dioxide than competing fibers 4. This product is very light and easy to make. It is also a good choice.