cyb hair is mono base, with thick poly sides, though you can order it custom and get a lace front, they are by no means realistic. its synthetic hair, feels like real hair, but theres a catch. you constantly have to wet it with water, its loves water and to be hydrated, without constant hydration, it feels slightly less like real hair and more synthetic. also its very dense because the mono needs lots of hair to hide the base. you wont really find less dense cyb hair units. its also about 2.5k$ (USD) per unit. and they are exclusivley made in the philippines despite being owned by a japense company. the advantage of cyb hair is they can pretty much last forever, they quote at least 5 years for the mono/poly border units. you can def feel the cyb unit, even squinting your eyebrows can tug n the system and its always something you realize is there. unlike thin skin or swiss lace, you can easily forget your wearing it. cyb hair was my 1st unit, switching to a thin skin was such an eye opening experience. oh and its easier to wear cyb hair because you basically only need tape, their "lace front" hairline is a joke, its not even swiss lace, its really big lace that stands out like a sore thumb. and the knots, no hiding those. really low quality hairlines, best for non exposed, then you just need tape all around and its much easier then glue and because of the thicker poly base, you can easily pull the tape off without much thought of hurting the unit. i think cyb hair is like a secret cult, only those in the know talk about it, and its not many since you really cant find any info online and no one ever really talks about it on a forum. they are cutting edge if you lived in the 80s or early 90s, otherwise in todays market, you really better off with a thin skin or swiss lace type unit. you also have to take the unit to a dealer/installer once every 30 days for a "rejuventaition session", which from what i understand, they basically soak it in warm water for 10mins. oh and they also forbid you from being near any heat sources, like a bqq or hot oven, the intense heat can melt the synthetic hairs.