Allbirds Tree Loungers (Men's) M9 26.5cm - Perfect fit for high-arched feet. They show considerable wear, but are still wearable. These are Allbirds, the sneakers that the New York Times called "the world's most comfortable shoes" and are currently very popular in America. They have many fans in the tech industry, including Google's co-founders! Allbirds is a sneaker brand that is arguably the most popular in San Francisco right now. If you walk around the city, you won't go a day without seeing someone wearing Allbirds, and people on the street will even say, "Wow! Did you buy those?" if you're carrying a paper bag with the logo. Allbirds were developed by a former New Zealand professional soccer player as the perfect shoes to wear on a plane and throughout travel, and their comfort quickly spread among the IT elite in Silicon Valley. Prominent figures in Silicon Valley are all avid users of Allbirds, including Larry Page, Google's co-founder and former CEO, and Dick Costolo, the former CEO of Twitter. In addition, many venture capitalists, entrepreneurs, and others use them, and they are popular for their convenience, comfort, and minimal design that matches business suits, providing warmth in winter, excellent breathability in summer, and suppressing odors. Lightweight comfort as if walking on clouds Lightweight. Cool. Breathable. These are minimal and refreshing slip-ons made with eucalyptus-derived mesh that has excellent elasticity. ・Easy-to-wear, cool slip-on shoes ・Lightweight comfort with a low-density sole ・Comfortable wear with a sugarcane-derived sole