If you want seamless weft top , genius weft/XXS weft, pu weft and butterfly weft are better than traditional machine weft.
But traditional weft is ideal for people who prefer volume hair, because machine weft can make two or three layers. Customized size of genius weft or butterfly weft is also available.

Yes, these new type of hair extensions can be styled like other hair extensions, but you must protect the top pu from high temperature. Proper install and temperature protection are important to keep hair long-lasting.