Dress down days allow workers and professionals to refrain from wearing their normal professional attire and come to work in clothes that are more comfortable. However, individual companies will still have guidelines for dressdown days. The rule of thumb is no tube-tops, short shorts, flip-flops, or mini-skirts for women, and no muscle shirts, sandals, flip-flops, or cut-off shorts for men (see Reference 3). Many companies will allow workers to wear tasteful blue or dark jeans. Your company may also allow tasteful sandals for women on dress-down days. See your human resources department for dress-down day rules for your company.