Off-Black, Straight and Sleek
1B is soft black with a warm undertone; the shade most dark-haired clients have, holding depth where flat jet black reads as shadow. Here, straight, cuticle-aligned single-donor Slavic Remy runs one direction, so this off-black hair extension weft mirrors under a flat iron and never mats.
A Seam Thin Enough for Slicked-Back Hair
Dark, straight hair worn sleek (slick-back, low bun, tight ponytail) is hardest to hide a weft in, since no wave breaks the ridge. Tension pulls hair flat, and bulk at the track shows. Genius weft hair extensions solve this: silicone-sealed seams, no return hair, no glue, almost no vertical profile. Nothing sheds when brushed. Cut this black weft hair extensions style anywhere along its 24-inch width, and it won't unravel, which matters most to black weft hair extensions shoppers chasing a seamless line. Heat-safe to 390°F. The client needs 5-6 inches of natural hair to hide the track.
Built for the Salon Chair
Beaded row or sew-in — a 24-inch weft cut to width means fewer pieces, one appointment, no waste. The flat seam means less bulk on fine density; no glue means no removal solvent. Hair lasts 9-12 months, moved up every 6-8 weeks. 1B is the most-requested dark salon shade, matching most dark-haired clients without a color service first. As genius weft hair extensions go, this 1B hair extensions option is the trade-friendly pick for a fast install. Looking for warmer brown instead? See dark brown (2) genius weft, or browse k-tip extensions for strand-level precision. PRO accounts get 20% off every order.
Frequently Asked Questions
Will the track show in a slicked-back ponytail?
No, the ultra-thin seam has almost no profile, even under tension.
How wide is each weft, and can I cut it shorter?
24 inches; the sealed seam won't fray when trimmed.
Beaded row or sew-in, which suits this weft?
It comes down to preference and density.
How much natural hair do I need to hide the track?
About 5-6 inches conceals it cleanly.
Is 1B the same as jet black?
No, 1B has warmth jet black lacks; see our off-black (1B) K-tips page.
