Dang! What's this made from - Kevlar? :scratch:
It wouldn't surprise me if they where Kevlar. If you saw these hornets you'd understand why these suits even exist. Think of our hornets over here then scale it up 2-3 times. The stingers are 3/8th of an inch and they'll squirt venom through a screened vail into your face.

My dad was stationed over there and the first time I saw one of these hornets I about crapped my pants. They prey on honeybee colonies and 30 worker hornets will wipe out a 30K honeybee hive in a few hours. The Japanese beekeepers have no choice but to go after the hornets and ordinary bee protection is of no use. Go onto youtube and type in Giant Japanese hornet. Very entertaining viewing.
Being stung goes with the turf. All you fellow hobby Beeks out there that haven't been stung, you will one of these days. :doh: I have been stung over 200 times in all the years I've been messing with bees and wasps. :s Been stung through just about everything at one point or another, canvas gloves, bee suits with under garments, regular string veils when the netting touches the skin, 2 pairs of blue jeans, coveralls, you name it. Honey bees can sting through just about any bee suit fabric. Wearing layers of cloths underneath will help but there is the heat factor.
The trick is loose fitting outer garments with or without regular cloths underneath. The baggy outer garment keeps the stingers away from your skin. Anywhere the outer garment is touching your skin they can get you. That's why wrist stings are so common. A good pair of vented leather gauntlet gloves work best to protect your wrist . I get it in the waist and legs when I bend down and the fabric of my pants are stretched tight against the skin. When working with hot bees I typically wear a baggy pair of outer pants over a pair of jeans, My baggy Sherriff Rustler jacket which I have yet to be stung through (knock wood) over a thick long-sleeve shirt, my leather gauntlet gloves and a pair of canvas ankle gauntlets. Ankles are another place I've been stung allot. You put on as much protection as you need based on your bees temperament that day and how much heat you can stand.