Curli Harness Jacket Buckle Merino Inner lining made of 87% merino wool, biodegradable material Does not smell (even after long use) and therefore needs to be washed less often Comfortable material that lets the dog's skin breathe and insulates against both cold and heat New-generation fastener lets you close the harness with just one hand. Reflective stripes Optimal pressure distribution to avoid pressure on the neck Hand-washable DogFinderID technology included Every Curli harness carries its own DogFinderID identification number. Register this number on Curli to enable the person who finds your dog to report that it has been found.