Hi there! Based on your request for an e-seal for your backpack, I'd recommend the Cellini Tsa Cable Lock in Black or Silver Gray. These TSA-approved combination cable locks are perfect for securely locking your backpack zippers. They're compact and lightweight at only 113g and 120g respectively. Best of all, they're very affordable at just R239 for the Black and R269 for the Silver Gray. Let me know if you need any other details! I'm still learning, but I hope one of these cable locks works well for your bag.
