mountaineering boots; climbing boots
Heavy-duty boots designed for serious mountain climbing, with stiff soles and crampon compatibility.
冬山に登る前に、しっかりした登山靴を買った。
Before climbing the winter mountain, I bought sturdy mountaineering boots.
hiking boots; trekking boots
Lighter boots suitable for hiking and trekking on trails, less rigid than mountaineering boots.
ハイキングには軽い登山靴がおすすめです。
Light hiking boots are recommended for hiking.
Compound of 登山 (tozan, 'mountain climbing') and 靴 (kutsu, 'shoes'), with rendaku voicing of くつ to ぐつ.