As some of you know, there are various types of extensions. Your hair and lifestyle determines which option is best for you. For example if you workout and want a low maintenance style you may opt for a full sew in. If you want to add fullness and length you may opt for a partial sew in. The number one complaint with a "full" weave is that it doesn't look natural. If you want to give your natural hair a break, but are nervous about the "wiggy" factor, then try a silk base closure. A silk base closure gives the illusion that a scalp is present. It looks very natural, because it's difficult to trace the fabrication.
Below is a picture of a silk base closure:
All extensions, cut, and style done by Serena J. at the Bryan Joseph Salon in Washington, Dc 2011