How durable are WarmCards?
WarmCards are strong and rugged. They won’t get bent, folded, dirty, faded, or dog eared under normal everyday use in the field. They are water resistant, easily wiped clean, and the matte finish reduces reflections while white balancing. Note: WarmCards are no longer guaranteed for use underwater. If you choose to use your WarmCards in water, such as for diving, then the warranty is voided.