Backpack Patches for Travelers and Hikers
https://s3.us-east-2.amazonaws.com/sewwhat-embroidered-patches-s3-2611/custom-patch-guides/uncategorized/collecting-patches-storage-and-display-tips.html
Walk through any hostel common room or trailhead parking lot and you will see them: flags from countries visited, national park emblems, trail club logos and funny slogans stitched onto packs that have clearly seen some miles