Backpack or Rucksack

A backpack (also called rucksack, knapsack, packsack, pack, Haversack, or Bergen) is, in its simplest form, a cloth sack carried on one's back and secured with two straps that go over the shoulders, but there can be exceptions. Light weight types of backpacks are sometimes worn on only one shoulder strap, or in the hand liken an ordinary bag.

Sleeping bag

A sleeping bag is a protective "bag" for a person to sleep in, essentially a blanket that can be closed with a zipper or similar means, and functions as a bed in situations where it is impractical to carry around a full bed (i.e. when camping, hiking, hill walking or climbing). Its primary purpose is to provide warmth and thermal insulation.

Tent

A tent is a shelter consisting of sheets of fabric or other material draped over or attached to a frame of poles or attached to a supporting rope. While smaller tents may be free-standing or attached to the ground, large tents are usually anchored using guy ropes tied to stakes or pegs.

Trekking or Hiking Shoes

Footwear is the most important gear when it comes to trekking or hiking, to enjoy your journey you must have proper footwear. I have seen people wearing fancy footwear during the trek, it makes them uncomfortable or gets blisters for forcing themselves in wrong footwear. Read to know what you should wear while trekking or hiking