Aerogell

Aerogell, a light material. It's great for insulating a tiny bit since it doesn't conduct heat all that fast. This

material is pretty useless because aerogell is a very fragile material. Just touching it fractures it however it can hold a lot of weight on top of it.

Armour
There is no armour made out of aerogell.

Sword
The sword is like air and can go quite fast.