If you come to Japan and plan to enjoy trekking here, please use following information as a reference. There are some equipments and goods available in Japan, check and enjoy to use them!
Wear and Equipments
Montbell is founded in 1975 in Japan by a Japanese man and is today one of the Japanese largest suppliers of outdoor equipment. There are large number of products for various kinds of activities developing by Montbell itself.
in Tokyo
In Tokyo, there are a lot of sports equipment shops. Especially in around Ochanomizu station, mass retailer of various sports shops for ski, snowboard, surfing, cycling, golf, running, climbing, trekking...etc, open shops. Following lists display some of them around Shinjuku, Shibuya, Ikebukuro, and Ochanomizu stations.
In addition, almost all of the world's famous outdoor brands have stores in Shibuya, for example, Nike, Adiddas, Burton, Patagonia, Millet, Hoglofs, The North Face, Oarkley, Mammut, Columbia, GREGORY...etc..
Sport nutrition foods
Weider in Jelly (ウイダーinゼリー ) is the most famous jelly foods in Japan. You can get them from amazon or even convenience store everywhere in Japan.
ウイダーinゼリー (Weider in Jelly) エネルギー マスカット味 180g×6個 ウイダー https://www.amazon.co.jp/dp/B00BAN5XQ2/ref=cm_sw_r_tw_dp_x_HIJ4xbSR1SQBV
ウイダーinゼリー マルチミネラル 180g×6個 ウイダー
https://www.amazon.co.jp/dp/B00TZE7D9S/ref=cm_sw_r_tw_dp_x_CJJ4xb9RAGEC6
ウイダーinゼリー プロテイン ヨーグルト味 180g×6個 ウイダー
https://www.amazon.co.jp/dp/B00I95JY9Q/ref=cm_sw_r_tw_dp_x_XJJ4xbF9RW4E2