Soft, supple leather that won&';t flatten or crack - with the quick-release buckle you actually want to use. Why we built it this way Rolled leather sits softer on a dog&';s neck than flat leather - no edges, no pressure points, no rubbing under the chin. We use full-grain American leather, hand-rolled and saddle-stitched in Denver, so the collar conforms to your dog&';s neck over weeks instead of breaking down over months. The quick-release buckle is a YKK polyacetal side-release with a steel D-ring - the same hardware trainers and working-dog handlers trust. One-handed on. One-handed off. No struggling with a belt buckle when your dog is wet, cold, or just done with the walk. What&';s in it Full-grain American leather, vegetable-tanned and rolled by hand YKK polyacetal quick-release buckle - corrosion-proof, won&';t freeze in winter, won&';t rust in surf Marine-grade steel D-ring, welded closed Saddle-stitched ends with waxed thread - won&';t unravel like glue-and-rivet construction Made in Denver, Colorado by the same small team since 1995 How it ages Full-grain leather darkens and softens with wear. After a few months of walking, swimming, hiking - your dog&';s collar starts to look like it belongs to your dog. That&';s the point. Cheap leather goes the other way: stiff, then cracked, then trash. Ours doesn&';t. Sizing Wrap a soft tape measure around your dog&';s neck where the collar would sit - snug, with room for two fingers underneath. That number is the size you want. Between sizes? Go up. Leather softens and shapes to your dog&';s neck over the first 30 days. XS: 5/8" width, 13"-14" neck S: 5/8" width, 15"-16" neck M: 5/8" width, 17"-18" neck L: 3/4" width, 18"-20" neck XL: 3/4" width, 20"-22" neck Care Wipe with a damp cloth after wet walks. Condition with leather balm every 3-6 months. Don&';t soak it; don&';t run it through the washer. Backed by our 1-year guarantee - if it fails under normal use within a year, we make it right. No fine print.