By taking a plaster mold of an individuals lace wigs makers create a headpiece that not only offers a perfectly proper fit but will even produce a suction on the head hence the name 'vacuum'. With a silicone base that hair is injected into, vacuum brazilian hair bundles uk are arguably the most sought-after full lace wigs uk available. But be careful! Because of the way they are made and designed, vacuum wigs can be extremely warm, and typically take some time before the wearer properly gets comfortable with it. Some of the human hair extensions uk however, are human hair wigs. They get the name because, well, they're made from lace wigs. Because they come from other people, human hair wigs are the most natural looking of all wig types. However, with this realism comes a hefty price tag, as human hair wigs are often much more expensive than those made of synthetic materials.