Microfibre Upper - Ensures flexibility and support. Bonded Heel - Ensures a lo...Microfibre Upper - Ensures flexibility and support. Bonded Heel - Ensures a locked-down, durable fit. Heel Stitching - Relieves pressure on the achilles. Rubberised Toe-Box - Supports secure toe hooking. Lacing System - Provides a tighter, snugger fit.more