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Metatarsal Protection (PORON Material)

8:46
17:06
50.5K views

At 8:46 in

How to pick the best Work boots & shoes for the Job site & why some wear out so fast

What happens here

The expert details metatarsal protection, which is designed to shield the top and front of the foot from impact and compression. He shows two types: external metatarsal guards, which are visible and provide robust protection, and internal metatarsal guards made from 'PORON' material. PORON is a flexible, lightweight, open-cell foam that absorbs up to 90% of impact energy. He demonstrates how PORON, though thin, becomes rock-solid on impact, offering significant protection without the bulk that can make kneeling uncomfortable with external guards. This feature is crucial for jobs where objects might fall on the top of the foot.

Goal: Understand metatarsal protection options and the benefits of PORON material.

Tools and materials

  • EVA Material Sample — Comparison with PORON material
  • Keen Utility Boot — Demonstrating external metatarsal protection
  • PORON Material Sample PORON — Illustrating energy absorption properties
  • Steel Ball Bearing — Demonstrating impact absorption

What they say

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So, metatarscils are the top bones in your feet. Uh, it's a requirement. It's actually certain types of boots and this can be their external. So here it is in an external piece, regular boot underneath. Okay. Uh and then we have some boots where it's actually on the inside. Okay. So if you guys may be asking why do I care about that? Well, if you are in an industry where you got to have that protection or um one of the guys uh at the at the factory was talking about how he likes it for chainsaw work, forestry work because his laces aren't getting caught while he's walking through the woods when he's cutting wood. He prefers it. Um and then you have one you have a boot that actually has that built in. Yeah. Uh this actually has it built in. Um, I know it seems weird, but that boot with or that shoe with and without, you never notice cuz it's essentially this piece of material that's soft and squishy is providing the same protection as this. No, totally sounds weird, right? So, look how thin that is. Yeah. This is the EVA squishy material I was showing you. That's thicker, right? So, uh, same ball bearing bounces like crazy, right? Yeah. Holy crap. It's very weird. It's a chemical process. What? So, it's soft. it without anything happening to it. A little bit of energy like an impact does this whole chemical thing which turns this thing rock solid for a moment which allows it to absorb all that energy and stop it and it's so much thinner. This thing is rock solid and honestly if you have to bend on your knee you get this thing jamming up into your shin. So it's really limiting but some companies want to see it. Some companies will demand it but don't care if they see it or not. But uh at least you have the ability to do this. So, I can make a boot with and without this. You'd never know it was in there. Um, so it's a really great technology that's been added. See that that ball thingy again? Sure. So, bounces on EVA, right? That's insane. Yeah, it's kind of crazy. Who would have thought boots could be this interesting? One of the things that Keen does different is they have a left and a right toe cap. So, you can see how this is actually angled to accommodate

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