You can adjust the exact length with just one movement. It couldn't be more comfortable. Detailed binding instructions with pictures included facilitate the first wear attempts. Amazon Ring Sling is made of 100% cotton - breathable and completely harmless to health. The diagonally elastic, lengthwise but firm and stable cloth, woven in the proven cross twill weave, gives the baby optimum support in every position. A practical pocket, in which the rings disappear during washing and in which the entire cloth can be stowed, is sewn on at the lower end of the cloth.