After Vidal Sassoon changed the look of women’s hair with his radical geometric cuts in the early 1960s, variants of his original shapes prevailed. Short cuts kept close to a head’s profile, longer bobs swung in movement but dropped straight as a curtain at rest.
Then in 1974, Sassoon’s young artistic director, Trevor Sorbie, saw how a model’s locks fell full and chunky as he pulled a brush through them, and, impromptu, cut that shape into her hair. This was 3D geometry. Voila, the Wedge, so striking that Vogue allotted it an unprecedented double-page spread. The cut was imitated worldwide, an emblem of the 70s like the platform soles and wide flares it balanced.