Sew a 20L Simple Roll Top Backpack Base With a Pocket for Frame, Can Make a Climbing, Weatherproof, Hiking, City Bag, or a Combo of These. (climbing Mod Shown) : 5 Steps (
DIY Foldover top Backpack | 나만의 롤탑 백팩 만드는 방법 | How to sew backpack | リュックサックの作り方 #sewingtimes - YouTube