Sam , a former Internet company PM, devoted himself to enjoying retro clothing and cycling after resigning. He has a lot of experience in American retro, Amy Khaki, denim clothing, cycling and camping. Last summer, I just completed a 1600km+ long-distance ride from Xining, Qinghai to Leshan, Sichuan with BBR (Barbour, Brompton, Redwing) together with Jiyou Awei. After I came back, I studied the coffee field in depth. In order to supplement the theoretical knowledge, I also went to learn the useless SCA (Specialty Coffee Association Certification).