For all adventures including ziplining, please dress is non-cotton layers* (ex: dri-fit, Under Armour, fleece) and bring a light jacket and/or rain gear. Do not go out and buy expensive clothing just for one adventure, the key is to dress in layers. Clothes toed shoes are a must for all adventures. For ziplining, jeans and shorts (not short shorts) are okay, just avoid loose fitted clothing (scarves, etc). Long hair must be pulled back in a low pony tail or a braid (recommended).
*Non-cotton layers dry quickly if it rains and keep you warmer.