What gear do you use on your pure Destruction mage? I currently have the Archmage Robes, a self crafted magika regen ring, a destro reduction necklace, Morokei, Magicka crafted gloves and some fire resist boots. My enchanting is still working its way up, so enchants are not quite what they could be.
Still can't decide if I want to improve smithing at all to improve enchanted gear or not.

I have separate elemental resistant boots, I don't wear masks because I can't use alteration to defend myself.(EDIT masks are armored and I use the flesh spell perks) I have have the arch mage robs and the rest are use to reduce the cost of destruction. I'd say you're looking good I think the arch mage has 40% electricity resistant boots I'd keep those in my inventory and get some boots that are resistant to frost.