With a fin friendly fit, this boot will fit just about any dive fin used by Militaries worldwide. Full length one piece ABS shank provides stability and support when climbing a caving ladder. Maritime Boot for all tactical water operations. Air mesh linings help wick away sweat and other moisture quickly from your foot. Full length one piece ABS shank provides stability and support when climbing a caving ladder. Non-shine rust-proof lace hardware. Ultron PU contoured insole will not absorb water. High abrasion quick drying 1000D Cordura quarter panels offered on both solid colors and Multicam. Front non-metallic drain ports allow for water to drain easily when flexing the boot.