TINGLEY MB816B.11 16" Steel Toe/Steel Midsole Metatarsal Boot, Size 11, Black Meets ASTM F2413 M/I/75/C/75 Mt75 PR EH for steel toe impact and compression, metatarsal impact, puncture resistance, & electrical hazard protection. Abrasion resistant rubber in key exposure areas for improved performance and durability. Retro reflective band provides 360 degree visibility. Made of ozone resistant rubber to reduce premature cracking. Floating metatarsal guard provides flexible protection even when bending, kneeling, and crawling.