Different visual references for the same hairstyle idea. These are examples, not fixed specifications.
A fictional tanned white woman in her 40s wearing highlighted blonde hair in a smooth long cut with a strong continuous perimeter. Type 1B straight appearance: predominantly straight lengths with slightly more body than 1A while remaining sleek and smooth. Long, extending below the shoulders to the upper chest with a full nearly one-length edge.
A fictional white woman in her 60s wearing long silver-gray hair in a smooth, center-parted, near-one-length cut. Type 1A straight appearance: smooth straight silver-gray lengths with minimal visible wave and a continuous surface. Long, falling below the shoulders with a dense softly blunted perimeter.
A fictional East Asian woman in her 30s wearing a center-parted sleek long cut with a dense, nearly one-length perimeter. Type 1A straight appearance: very straight, smooth lengths with minimal visible bend and no visible layered graduation. Long, extending well below the shoulders toward the chest with a full straight perimeter.