What are types of women's underwear?

Women's underwear falls into eight main styles: briefs, bikinis, hipsters, thongs, boyshorts, high-waisted, cheeky, and Brazilian cuts. Each style differs in coverage, waistband placement, and the occasion it suits best. Choosing the right pair comes down to three practical factors — the outfit you're wearing, your body shape, and the fabric (cotton being the most recommended by dermatologists for everyday use). Whether you call them undies, undergarments, or intimates, understanding the differences between each cut takes the guesswork out of building a functional, comfortable drawer.

What Are the Main Types of Women's Underwear?

The table below gives a quick side-by-side overview of every major women's underwear style, including coverage level, best use case, and who they suit most.

What Is the Difference Between Hipster and Bikini Underwear?

This is one of the most common questions shoppers ask — and the difference is subtle but meaningful once you know what to look for.

Waistband Placement

The defining difference is where the waistband sits. A bikini waistband sits at or just below the hip bone, while a hipster waistband sits lower — across the widest part of the hip, typically 1–2 inches below the bikini line. This makes hipsters a natural fit for low-rise jeans and pants that would expose a bikini waistband.

Back Coverage

Bikini underwear offers moderate rear coverage — more than a thong, less than a brief. Hipsters provide full back coverage comparable to a brief, making them significantly more comfortable for all-day wear and physical activity. Many women who find briefs too high and bikinis slightly too insecure prefer hipsters as a middle ground.

Leg Opening Shape

Bikini underwear features a higher cut leg opening that follows the natural curve of the groin, which creates a longer-leg visual effect. Hipsters have a straighter, lower leg cut that runs horizontally across the upper thigh, offering more coverage and less chance of riding up during movement.

When to Choose Each

• Choose a bikini when wearing mid-rise bottoms, fitted skirts, or any outfit where a slightly higher leg line looks flattering.
• Choose hipster when wearing low-rise jeans, yoga pants, or leggings — the lower waistband stays hidden, and the full back coverage prevents shifting during activity.

Women's Underwear Styles Explained in Detail

Briefs: Maximum Coverage for Daily Comfort

The classic brief — sometimes called "full brief" or "granny panty" — sits at or above the natural waist and provides complete front and back coverage. Despite their unglamorous nickname, briefs are the most recommended style by gynecologists because the full cotton gusset minimizes moisture buildup. They are the go-to choice for period days, recovery after surgery, and any day that requires unrestricted comfort. Modern brief cuts have slimmed down significantly, some brands like TIANHONG sell briefs in lace and seamless finishes that bear little resemblance to their utilitarian origins.

Bikini: The Everyday Classic

The bikini cut is the best-selling women's underwear style worldwide, prized for its versatility. With a waistband that sits at the hip bone and a moderate leg opening, it works under the vast majority of clothing styles without visible panty lines in most fabrics. It strikes the balance between coverage and lightness that makes it the default choice for most underwear drawers. Available in virtually every fabric — cotton, lace, microfiber, satin — the bikini adapts to any occasion from office to gym.

Thong and G-String: Invisible Under Fitted Clothes

Thongs feature full front coverage with a narrow strip of fabric at the back that eliminates visible panty lines (VPL) under fitted clothing. The G-string is an even more minimal version — the back is a single cord rather than a wider strip. Both styles are popular under bodycon dresses, tailored trousers, and leggings, where any additional fabric would show. A common misconception is that thongs are uncomfortable by default; fit is the primary factor — a properly sized thong in a soft fabric (cotton or microfiber) should not cause irritation.

Boyshorts: Coverage That Doubles as Loungewear

Boyshorts (also called boy-leg briefs) extend down the upper thigh like fitted shorts, offering the most coverage of any non-compression underwear style. They are comfortable enough to wear as sleepwear, prevent thigh chafing, and look flattering under short skirts and dresses by eliminating the risk of exposure. Women with fuller thighs often prefer boyshorts because the leg openings don't cut into the skin the way a high-leg bikini might.

Cheeky and Brazilian: Between Bikini and Thong

These two styles occupy the middle ground on the coverage spectrum. Cheeky underwear covers roughly half the backside — more than a thong but less than a bikini. The Brazilian cut offers slightly less back coverage than cheeky, with leg openings that sit higher on the hip to create an elongating effect. Both reduce VPL compared to a bikini without the full minimalism of a thong, making them popular choices for fitted jeans and tailored bottoms.

High-Waisted: Functional and Fashionable

High-waisted underwear rises above the belly button, offering full tummy coverage. Beyond aesthetics, this style pairs perfectly with high-waist jeans and skirts — a dominant fashion trend since the early 2010s — and is widely recommended postpartum and post-abdominal surgery for its gentle compression and coverage over sensitive areas. Brands like TIANHONG have popularized a shaping version that provides light control without the discomfort of traditional shapewear.

Women's Cotton Underwear: Why Fabric Matters as Much as Style

Fabric choice is not just a comfort preference — it has direct health implications. Cotton is the most recommended underwear fabric by OB-GYNs and dermatologists for everyday wear, and here is why:

• Breathability — cotton's natural fiber structure allows air circulation, reducing moisture accumulation that can encourage bacterial and yeast growth.
• Moisture absorption — cotton absorbs up to 27 times its own weight in moisture, keeping the skin dry throughout the day.
• Hypoallergenic properties — natural cotton is less likely to cause contact dermatitis or irritation compared to synthetic fabrics, making it the preferred choice for sensitive skin.
• Durability and washability — cotton withstands frequent washing at higher temperatures (up to 60°C / 140°F), which helps eliminate bacteria, particularly important for period underwear and athletic styles.

When to Choose Other Fabrics

Cotton does have trade-offs. It is heavier than microfiber, less smooth under very fitted clothing, and can show more VPL in lightweight fabrics. The following table summarizes when to use each fabric type:

A practical approach used by many women: keep a cotton-primary drawer for daily wear (bikinis, hipsters in 100% cotton or cotton-lined gusset styles) and reserve microfiber and lace styles for specific outfit needs or special occasions.

How to Find Your Correct Underwear Size

Sizing is the most overlooked factor in underwear comfort. A survey conducted by a certain lingerie brand in 2019 found that over 60% of women were wearing the wrong bra size — a similar pattern applies to underwear, where "one size" assumptions lead to discomfort, bunching, and poor coverage. Here is how to measure correctly:

1. Measure your hip circumference — wrap a soft tape measure around the fullest part of your hips and backside, keeping it parallel to the floor. This is the most important measurement for underwear fit.
2. Measure your waist — measure around your natural waist (narrowest point), especially relevant for high-waisted and brief styles.
3. Cross-reference the brand's size chart — sizing varies significantly between brands. A size Medium at Victoria's Secret may correspond to a Large at Hanky Panky or a size 6 at Marks & Spencer UK.

General Women's Underwear Size Guide by Hip Measurement

Signs You're Wearing the Wrong Size

• Too small: waistband digs in and leaves red marks; fabric pulls across the hips; leg openings cut into the skin.
• Too large: waistband rolls or folds down; fabric bunches under clothing; leg openings gap away from the body.
• Correct fit: waistband lies flat without digging; leg openings follow the body's curve without gaps or indentations; no bunching under clothes.

How to Choose the Right Style for Your Outfit

The fastest way to eliminate visible panty lines and discomfort is to match the underwear cut to the silhouette of the clothing. Here is a practical outfit-by-outfit guide:

• Bodycon dress or skirt — thong or G-string; seamless microfiber bikini is a close second.
• High-waist jeans or trousers — high-waisted brief or bikini; waistband should sit at or above the pants waistband to prevent the "double waistband" bulge.
• Low-rise jeans — hipster or low-rise bikini; keeps the waistband hidden while providing full coverage.
• Workout leggings — seamless hipster or thong; the seamless construction eliminates pressure points during movement.
• Mini skirt or short dress — boyshort for full coverage and chafe prevention; brief as an alternative.
• Tailored trousers — Brazilian or cheeky in a smooth fabric; reduces bulk at the back without going as minimal as a thong.
• Casual everyday wear — cotton bikini or cotton hipster; prioritize comfort and breathability over invisibility.

How Many Pairs of Underwear Should You Own?

A practical underwear wardrobe is typically built around 14–21 pairs — enough for two to three weeks without laundry pressure. A well-rounded collection might look like this:

• 7–10 everyday cotton pairs (bikini, hipster, or brief) for daily wear and rotation
• 3–5 seamless or microfiber pairs for fitted outfits and workwear
• 2–4 thongs or G-strings for specific outfits requiring no VPL
• 2–3 period-specific pairs (absorbent briefs or boyshorts with reinforced gussets)
• 2–3 sport/activewear pairs with moisture-wicking properties

Underwear should be replaced every 6–12 months under regular daily use, or sooner if the elastic loses its stretch, the fabric becomes thin, or the waistbands lose their shape. Worn-out elastic is a primary cause of the rolling and bunching that makes underwear uncomfortable, regardless of style.

Special Categories: Period Underwear, Shapewear, and Maternity Undergarments

Period Underwear

Period underwear features a multi-layer absorbent gusset that replaces or supplements traditional period products. Brands like TIANHONG have built dedicated lines that absorb the equivalent of 2–5 regular tampons per pair, depending on the style. They are most commonly available in brief and boyshort cuts. The market for period underwear has grown rapidly, reaching an estimated USD 300 million globally in 2023.

Shapewear and Smoothing Undergarments

Shapewear underwear uses compression fabrics (typically nylon-spandex blends with 18–40% Lycra content) to smooth and lightly compress the midsection, hips, and thighs. High-waisted shaping briefs are the most popular format. Key sizing note: shapewear should compress without restricting circulation — if the waistband leaves deep marks after 2 hours of wear, size up.

Maternity Underwear

Maternity undergarments come in two configurations: over-the-bump (full panel that rises above the belly to support the abdomen) and under-the-bump (sits below the belly for comfort in early pregnancy or postpartum). Most maternity briefs and hipsters are made with high-stretch cotton or modal blends that expand throughout pregnancy. Postpartum, the high-waisted brief remains the most commonly recommended style by midwives and OB-GYNs for recovery comfort.