ドイターさんのインスタグラム写真 - (ドイターInstagram)「In 1908, Oscar Eckenstein refined the design of the so-called "crampons", a kind of toothed metal-claws, which alpinists can attach to their boots. These crampons allowed a climber to gain a more solid footing on the slippery ice. ❄️ - Thanks @perryjblige (📸 by @patgep) for sharing your #deutermoment. 🏔❤️ Please tag #yesdeuter to be featured. - #deuter #deuterbackpack #iceclimbing #mountainescape #mountaineer #climbingonice #alpinism #iceclimbingimages」12月29日 1時00分