Women's Maternity Sweaters Guide

The sweater drawer divides in pregnancy into what still works and what has become a crop top. Our original guide photographed two maternity sweaters to make its point — the category is about front length and give — and those two specifications decide almost every purchase: a maternity sweater is cut longer at the front so the hem stays level, in a knit with enough stretch or ease to cover the bump without strangling it.

The happiest discovery in the category is how much of a regular sweater collection survives: open cardigans, waterfall fronts and oversized knits often work to term. This page covers both — what to borrow from your own drawer and what true maternity sweaters add.

Cardigans: The Ones That Never Close

The cardigan is the maternity sweater of least resistance: worn open, it asks nothing of the bump, frames tops and dresses, and adjusts to temperature by the hour. Long waterfall and duster cardigans add the vertical line that balances a bump in photographs. Belted cardigans belt above the bump or not at all. Because no closure needs to meet, a regular cardigan in your normal size is maternity wear for as long as the sleeves behave — which is to say, usually, the entire pregnancy.

Maternity-cut cardigans add front length and sometimes a nursing-friendly wrap front, but the honest advice is to buy cardigans last: try your own first, and spend only if the drawer comes up empty.

Pullovers: Where Maternity Cut Matters

A pullover must actually go over the bump, and here the maternity pattern earns its keep: graded room through the body, longer fronts, side ruching or slits that let the hem ride without climbing, and knits — fine-gauge jersey-knits, stretch rib, soft chenille — that give and recover. Turtlenecks and cowl necks draw the eye up; empire-seamed and wrap sweaters define the under-bust line; a chunky knit worn open-necked over a maternity tee is the winter uniform of half the category's advertising, because it works.

Yarn choice follows your thermostat: pregnancy runs warm, so cotton, cotton-blend and fine merino sweaters see more wear than heavy wool, and the thickest knits often end the day draped over a chair. Buy the weight you'd wear indoors, and let the coat handle the outdoors.

After the Bump

Sweaters retire gracefully: cardigans are permanent wardrobe, wrap sweaters nurse, and pullovers become the oversized knits every wardrobe cycles back to. Of the cold-weather maternity categories, this one wastes the least money — which is exactly why it is the right place to buy the one beautiful piece, in a color you love, that makes the winter of a pregnancy feel styled rather than survived.

The general women's sweaters guide linked below covers knits beyond maternity; our maternity tops guide maps how sweaters sit in the wider tops family.

Gauge, Weight and the Warmth Illusion

Sweaters lie about warmth by bulk: the thickest knit is not always the warmest, and in pregnancy the illusion costs comfort. A fine-gauge merino or a dense cotton knit traps heat in a thin, flexible layer that fits under coats and over bumps without armor; a lofty acrylic chunk-knit is mostly air worn on the outside, impressive in the mirror and oddly cold in a draft, while running hot the moment you come indoors. Read the fiber label before the mirror. Natural fibers and fine gauges regulate; novelty bulk performs. Since maternity sweaters spend their lives indoors — at desks, on sofas, in restaurants kept at temperatures chosen by people who are not pregnant — the regulating sweater in a weight you can wear all evening beats the dramatic one you will drape over a chair by the second hour.

Photos From Our Original Guide