Experience unparalleled trail-ready performance with the Merrell® Women’s All Out Crush 2 Tough Mudder BOA trail running shoes. These super lightweight and agile running shoes feature a BOA® lacing system that can be tightened and loosened with a simple twist or pull of the dial, perfect for keep shoes securely on your feet while trudging through mud and sloshing through puddles. The Tough Mudder 2 also features breathable uppers, water-wicking portholes and durable Trailprotect™ pads that cushion feet. Conquer your next obstacle course race in the All Out Crush 2 Tough Mudder BOA.