When it comes to packing clothes for Vietnam, it is important to remember the weather conditions prevalent in the country during the time of the visit. As a rule of thumb, cotton and other breathable fabrics are more suited to the Vietnamese weather than silk and other more heat-absorbing textiles. In addition to t-shirts, travel pants and shorts, visitors should also pack a day dress or a formal shirt (depending on your gender) for when one needs to dine in some of the finer venues and hotels. A hiking outfit and bathing suits are also must-haves while sunglasses, hats and caps will also help keep the sun out of one's eyes.