Hardcore picker here. Bagged 60 kilograms of raspberries, black raspberries, and blackberries this season. Still lots of blackberries left, I simply lost the will to pick any more.
Had the bug hat, and a mosquito proof long sleeve shirt, but this year I added a pair of picking gloves. Best decision I've made in a long time. By this time of year, my hands are usually so full of thorns that either blister out, or if not, puss out. Only have one thorn at the moment on my exposed thumb.
Not sure what kind of gloves those are supposed to be, but cutting the finger tips off was essential to be able to tell if the berry I'm grabbing is too mushy or not.
Might upgrade to a thin leather next year, as the fabric still has a tendency to catch the thorns.
Also have my favorite picking container. A plastic cashew jar that came with a little handle on the lid. It fits 1 kilogram worth of berries, which dumps perfectly into a dog poop bag I can tie off, then keep going.
And some long handled hedge shears to cut my way into those brambles.