Ultrafun Tactical Dog Molle Harness Nylon Training Patrol Vest Packs with 3 Detachable Pouches (L, Black) High quality Tactical Dog Vest has a duty nylon with ripstop design, it can be last for a long time using MOLLE system on both side of vest can be attached any MOLLE pouches, certainly including the pouches we provided You can add some hook&amp;loop panel down the back for any patch furniture We have 3 sizes totally, providing sundries pouch, zipper pouch and medical pouch totally 3 pouches Different colors for your personal preference and matching with your pet M: Chest Girth:17~27, Neck:11~15Back length 17-19; Vest length 16 (inch) L: Chest Girth:19~36, Neck:14~18 Back length 20-22; Vest length 19 (inch) XL: Chest Girth:21~40, Neck:12~21 Back length more than 22; Vest length 21 (inch)