Trade Only — Professional Product
The Empress Weft™
FLAT. SEAMLESS. DESIGNED FOR MOVEMENT.
The Genius Weft
The SISI Genius Weft is an ultra-thin, reusable weft of premium human hair, developed to be installed flat against the head. No bulk, no visible seams — only softness, movement and a finish that looks like the client’s own hair, only better.
It is a professional system. Placement, sectioning and tension are chosen by the stylist, so the result is always tailored to the head in front of them.
Track width
60 cm
Available lengths
18” · 22”
Weight per weft
18” — 50 g · 22” — 60 g
Colour
Twelve intermixable shades
Designed for
Colourists and extension specialists
Application
Professional installation required
Available lengths
- 18”
- 22”
The core collection, available across the full SISI colour edit.
16” and 24” available by special order.
Weight and coverage+
Each weft is supplied on a 60 cm track. 18” weighs 50 g and 22” weighs 60 g. A full head typically uses two to three wefts, adjusted to the client’s density and desired result.
Construction+
An ultra-flat, double drawn genius weft with no return hair and no bulk at the seam, so it sits flush against the head and can be cut to size without unravelling.
Colour and intermixing+
Twelve colourist-curated shades across the Brunette, Bronde, Balayage and Copper edits. Every shade intermixes with the others for custom dimension without carrying excess stock.
Application and aftercare+
Installed by a qualified professional using SISI micro rings and SISI Veil™ thread. Reusable through the maintenance cycle when moved and re-tensioned correctly.
Seamless Application
The Genius Weft sits flat against the head, disappearing into the client’s own hair.
Lightweight Feel
Ultra-fine and weightless, designed to protect the natural hair beneath.
Professional Installation
Applied by qualified specialists using micro rings and thread for a secure, refined finish.
Natural Movement
Hair that falls, swings and styles the way it should.
Comfortable Wear
No bulk, no pull — comfort that lasts between maintenance appointments.
Beautiful Blending
Dimensional colour and cuticle-aligned hair that melts into salon colour work.
Premium Hair Quality
100% human hair, selected for longevity, shine and consistency.
Made for Professionals
Every detail developed for real-world extension application.
Professional philosophy
“Extensions shouldn’t overpower the hair.
They should enhance it.”
The SISI Method is built on precision, placement, weight, colour and technique — careful consultation, considered colour and a light hand. The craft of making something extraordinary look entirely natural.
