There are a pool of shops in Kathmandu and Pokhara that sell trekking gears. You will find a few other shops in some places along the trek too. Apart from high quality and popular branded stores of trekking gears, you will also find many other shops selling high quality copy of these brands but at a relatively cheaper price. However, the quality of these gears may not be as promising. Some recommended shops to buy trekking equipment’s in Nepal are: Sherpa Adventure Gears Everest Hard Wear Red Fox Outdoor You can even rent most of the equipment from Kathmandu and Pokhara. The rental cost is cheap at should not exceed more than 3-4$ a day. When it comes to jackets, sleeping bags and boots, it is advisable not compromise on the quality.  Recklessness with caring the right kind of equipment can ruin the experience of the entire trek for you. Also, it is recommendable to buy a pair of high quality trekking glares from your hometown.