We use the best designer fabrics, they are durable, comfortable and safe. All the hardware and material are top quality. Made with pure cotton fabric that can not harm your furbaby skin ,with welded D-ring to add durability. We do a double box stitch at all of the stress points for added strength. These collars are soft, flexible, fashion and adjustable. Each bowtie is hand-sewn and attached to collar using an elastic strap. they are not machine-washable. But can be removed from collar and rinsed with water and mild soap.