All is permitted that pleases. Soft, feminine with a hint of nostalgia. Great Lengths, the specialist for hair thickening and extensions, bets on volume and long hair in the Trends 2015. The hairstyle is allowed to be a bit over-the-top, maybe through a voluminous hairline or casual curls. The obvious trend is a more or less low side parting, glamorously draped hair, slightly reminiscent of the 60s.