Things needed for trekking, For a typical multi-day trek in Nepal, the following things are needed. Most expeditions have teahouses ( Lodge) throughout, while others require camping and equipment. The size of your backpack depends primarily on whether or not you have porters on your trip. Those with porters usually carry your duffel bag, and you must bring your day pack with water, snacks, a camera, and rain gear. Without porters will need a larger pack to fit their supplies and sleeping bag. Certain items can be purchased in Nepal, but critical outdoor equipment is not recommended because you can’t get the quality things needed for trekking.
 Boundless Adventure always provides rental Sleeping bags and Down Jackets for Everest Base Camp trekking, Annapurna Base camp Trekking in the Annapurna conservation area, Manaslu Trekking, and Upper Mustang trekking. Every trekking trails are high pass trekking trail in the Himalayas in Nepal. If you have it on your own, then bring it with you. If not, let us know when you arrive in Nepal. But, this equipment is a rant; you need to cover some. You can visit every trekking shop in Thamel, Kathmandu if you feel comfortable. You can get trekking shops in every corner of Kathmandu. Anyway, these are the essential things needed for trekking. Have a look at the givenlink for more details.
Trekking gears in Nepal
Sleeping Equipment for Hiking
Tent (necessary for treks with camping) but not essential for Tea House trekking
Sleeping bag (–15° bag will suffice on most tours)*
Sleeping Pad
Silk Liner *Many nights at lower elevations will be hot, but a cold-weather bag is unavoidable because there will likely be a few freezing nights at a high elevations. At low elevations, you can only sleep with the silk liner, and using it later extends the life of your bag (oil from the skin is terrible for expensive down).
 Things needed for trekkingÂ
Backpack (size depends on whether or not you have porters)
Hiking boots* (break them in beforehand)
Camp shoes (your reward after a long day)
Wool socks (bring a few pairs of varying thicknesses)
Lightweight trekking pants
Trekking shorts
T-Shirts (lightweight wool is excellent)
Underwear *You will be hiking through a wide range of terrain, from mud in warm weather to snow in cold weather. The trail will be rocky throughout. The safest bet for Nepal trekking footwear is full backpacking boots, which provide proper support and protection from the elements. If there is a high pass on your trek, you may be walking on snow, and the conditions will be cold. A good compromise is to bring backpacking boots and trail shoes—you can use the trail shoes for camp and interchange the two depending on the conditions and how you feel.