Dylon fabric dyes for hand use are perfectly suited for smaller items like shorts, vests or socks, and for delicates youd rather not put in the machine like wool and silk. For perfect, long-lasting and intense colour results. Ideal for natural fabrics such as linen, cotton, and viscose. Lighter shades will be achieved on mixed fibres. Black will always have an air of classic, chic sophistication. With Intense Black, your blacks will be at their best, rich, intense and profoundly dark.