Explore LumenFlow hair extensions in standard 18", 20" and 22" in-stock lengths. Need another length? Contact our team to discuss a made-to-order option.
Popular hair extension lengths and custom options.
Shop our standard 18", 20" and 22" in-stock lengths, or contact our team about another length. Made-to-order options require additional production time. Most standard lengths are offered in more than 30 professional colors.
Availability may vary by product type, color and current stock.
In stock
18"
A versatile everyday length for natural-looking volume and a refined finish.
Butterfly Weft, Genius Weft, Tape In and K-Tip are offered in our standard 18", 20" and 22" lengths. Wigs follow a separate ready-to-wear length range.
Hair extension length is measured straight from the attachment point to the ends. Use the chart as a general reference for hair worn straight.
InchesCentimetersApproximate position when straight
12"30.5 cmAround the shoulders
14"35.6 cmUpper back
16"40.6 cmAround the shoulder blades
18"45.7 cmAround the bra-strap area
20"50.8 cmAround mid-back
22"55.9 cmAround the lower back
24"61.0 cmAround the waist
This chart is for reference only and does not indicate current stock. Final placement varies with the client’s height, body proportions, installation position and finished texture. Waves and curls may appear shorter than the same measured length worn straight.
LumenFlow Stylist Support
More ways LumenFlow supports your salon services.
Complete your service with professional color-matching tools, stylist kits and program benefits created for hair professionals.