So when I got these bundles (at a steal, they were $10 each and I only needed 2 for a full head... of course I split and sealed the wefts) I immediately installed it into a wig. I was pleasantly surprised that actual quality of the hair is better than the synthetic hair I am used to.
They are both wavy textures but the Russian bundle is not as loose as the Brazilian. I actually prefer the Russian's texture.
It didn't tangle or shed excessively. I can't speak on how it reacts to heat. I would totally recommend this hair (for a quick weave, i'm still not 100% convinced it can be an install... don't do it to yourself.)
I don't LOVE they way it blends with my natural hair.