You can get really long hair extensions from www.sishair.com. SIS HAIR sells 100% human hair weaves and hair extensions, including virgin hair, ombre hair, lace closure, silk base closure, wigs, clip-in hair, tape-in hair & i tip hair. Related Posts  
What Is The Longest Hair Extensions You Can Get? If you want to go for the longest possible length, you can choose Brazilian wefts (straight) for they extend to up to 28 inches. If you want variety and try clip-in, tape-in or other hair extensions, then the maximum is 30 inches (for tape-in). Related Posts