We have recently completely redesigned our Martingales to limited slip style. We will phase out the older model and gradually replace them with this design, with the exception of tweed collars which will be finished with a 25mm velvet lined reducing loop. Please note, our standard width for Martingales is 1.5".
The Martingale will reduce down to the size you set and will not reduce further. Owners are advised to reduce the collar to the smallest part of the neck then release the limited slip. When the limited slip is released the collar relaxes and sits much like a house collar giving a smart look. The final photo is slightly exaggerated for clarity.