Equipment needed depends largely upon where, when and how one is trekking. The main emphasis while trekking is on keeping warm and dry while still being lightweight. For lower altitude, fleece jackets and pants are adequate, while at higher altitudes down jackets are advisable. Waterproof, wind-proof jackets and pants, well broken-in footwear, bed covering are also recommended. Good sleeping bags, sunglasses, drinking water bottle, torchlight, sun block cream, toiletries, first aid kit and a very good route map are other items necessary. Cameras, on the other hand, are handy for taking home memories.