The Dy'on 5/8 Web Reins With 9 Leather Loops, from the D Collection, will match your D Collection bridle perfectly. These 16mm reins feature a sturdy webbing material, 9 english leather loops, brass hardware, fancy stitching and leather martingale sliders. It's a great option to help prevent reins from slipping through hands and helping the rider find the perfect length using the leather loops.