Used Tanner Claridge's rucksack/backpack pattern to make a leather and waxed canvas pack : r/Leathercraft
DIY Leather Backpack- Tutorial and Pattern Download - YouTube
Top Grain Leather Women Backpack | DIY Leather Bag Kits Backpack DIY – POPSEWING®
DIY Mini Leather Backpack
Amazon.com: WADORN 39pcs DIY PU Leather Shoulder Bag Making Set, Knitting Crochet Bag Hand Sewing All Materials Handmade Backpack Purse Making Supplies Finished Handicraft Bag All Accessories, 9x10.2 Inch (Brown)