Made from organic & environmentally friendly leather, these collars are free from chromium and are tanned with vegetable extracts - a process which makes each collar & lead batch unique! Being chemical free makes these collars safe for dogs with sensitive skin allergies and as they are organic the leather is incredibly soft. The dye is perminant and it doesnt stain, although the colour will intensify with use. No mass production machines or chemicals are used, just traditional techniques, cures and natural dyes. The collars have reinforced holes which stop common stretching problems for those dogs who like to pull! These natural collars come in green with a brown weave detail.