Feature Overview Loved Dogs. Approved by Parents. ✓Choke Free - patented X-frame and Deep V Neck Design so there's nothing pulling against your little dog's neck. ✓ Flexible Body Frame - the frame moves with your dog's movement to ensure their comfort. ✓ Snap & Swivel Buckle - say goodbye to buckles that hurt your finger. Our propriety buckle takes less than a second to put on and is comfortable for your pup. ✓ Breathable Double Mesh Layer - keep them cool and comfortable.