No, flare leggings and classic leggings should not be developed with the same fit logic. Classic leggings focus more on compression, waistband stability, and full-leg recovery. Flare leggings need additional attention to drape, lower-leg shape, movement, inseam proportion, and lifestyle styling. The fabric may need a softer compression feel or more flexible movement. If the flare opening, knee area, or hip fit is not balanced, the style can lose both comfort and shape.