Our round wax cotton cord of 2mm round might be the answer. Compared to polyester, hemp, or linen cord, this flexible and durable cotton cord is soft to the touch and will not irritate skin. This lightly wax covered and durable cording can withstand water and will not leave residue. The cotton cord with a matte and elegant finish is easy to maneuver, cut, glue, or tie knots and is stiff enough to hold its shape.