Machine wash with similar coloured washing in warm or cold water. Never use hot water or chlorine bleach. Tumble dry on a low heat setting. Note: When washing the SNOO Sack, make sure the Velcro wings are attached to each other and/or zip the sack closed to avoid damage caused by the Velcro clinging to other items in the load. Also, give extra dryer time on low heat to completely dry the sack.