How to Choose the Right G String Size: A Fit Guide That Works

Quick answer

Measure your hips at the fullest point, then match that number to the brand's chart rather than your usual clothing size. A well-fitting G string sits flat with no digging and stays put when you move. If you are between sizes, choose the larger size for fixed styles and your true size for adjustable styles.

A G string should feel barely there, not like a constant reminder. Most fit problems come from choosing a size based on jeans or leggings instead of your actual hip measurement, or from expecting every style to behave the same way. Once you know your measurement and the construction of the piece, sizing becomes much more predictable.

This guide walks through how to measure for a G string, what a correct fit feels like, and how to decide when you are between sizes. It also covers the trade-offs between fixed and adjustable designs, so you can choose the style that matches your body and your day.

How to measure for a G string

Use a soft measuring tape around the fullest part of your hips, keeping the tape level and snug but not tight. Write that number down and compare it to the brand's size chart. If your hip measurement falls between two sizes, that is your starting point for the decision rules below. Avoid measuring over thick clothing, and measure at the end of the day when your body is at its natural size.

Your waist measurement matters less for G strings because the fit is driven by the hip and the rise. However, if you are choosing a high-waist style, take your natural waist measurement too. For low-rise or adjustable styles, the hip measurement is the one that determines comfort and coverage.

• Measure hips at the fullest point, not at the hip bones.
• Keep the tape parallel to the floor all the way around.
• If you are between sizes, note both numbers before deciding.

How should a G string fit?

The back should sit comfortably between the glutes without pulling or twisting. The front should lie flat against the skin, and the side straps should not dig into your hips. When you move, bend, or sit, the fabric should stay in place without needing constant adjustment. A good fit feels secure but not restrictive, and you should forget you are wearing it within a few minutes.

If the back keeps riding up, the size is likely too large or the rise is too high for your torso. If the sides leave red marks or the front feels tight, the size is too small. A G string that is too tight can also cause the fabric to roll or bunch, which is a common sign to size up.

• No digging at the hips or waistband.
• No constant tugging or readjusting during the day.
• Fabric stays flat and smooth under clothing.

Fixed vs adjustable: what changes your size choice

Fixed styles have a set rise and strap length, so the size chart is your main guide. If you are between sizes on a fixed style, choose the larger size because there is no way to loosen the fit. Adjustable styles let you fine-tune the rise and tension at the hips, which gives you more flexibility if your measurements fall between two sizes. In that case, start with your true size and use the adjusters to dial in comfort.

The trade-off is that adjustable styles can feel slightly less streamlined under very tight clothing because of the extra hardware. Fixed styles offer a cleaner line but less room for error. Think about what you value more: a perfect custom fit or a seamless look.

• Fixed style and between sizes: size up.
• Adjustable style and between sizes: choose your true size.
• If you want a seamless look under leggings, fixed styles are often easier.

Common fit problems and what they mean

A G string that feels too tight usually shows up as redness, pinching, or a waistband that leaves marks. That is a sign to size up, especially in fixed styles. If the back keeps slipping or the front gaps, the size may be too large or the rise is not right for your body. Adjustable straps can sometimes fix a slipping back, but if the fabric itself is too loose, sizing down is the better move.

Fabric choice also affects fit perception. Silk and smooth materials glide and feel lighter, while lace has more stretch and texture. If you are new to G strings, a style with some stretch in the lace or a scrunched edge can feel more forgiving than a rigid fabric.

• Red marks or pinching: size up.
• Back riding up: check rise or consider adjustable straps.
• Front gapping: size down or try a different cut.

Decision rules for sizing a G string

• If you are between sizes on a fixed style: Choose the larger size. Fixed straps and waistbands cannot be loosened, and a too-small G string will dig in and roll. Size up for fixed styles.
• If you are between sizes on an adjustable style: Choose your true hip measurement. Adjustable straps let you tighten or loosen the rise by a few centimetres, so you can dial in the fit. True size for adjustable styles.
• If you want minimal adjustment and a seamless look: Choose a fixed style in your exact size. It will lie flatter under clothing, but you have less margin for error. Fixed for smoothness, adjustable for flexibility.
• If you are new to G strings: Start with a style that has some stretch or a scrunched edge, like the Scrunched Silk G String - Ice Queen, because it feels more forgiving against the skin. Stretch and texture make the transition easier.

Products that illustrate fit choices

• G String - Forest Muse: Adjustable hip straps for a personalised fit and made of 40% recycled material. If you are between sizes or want to fine-tune the rise, adjustable straps let you customise the fit without sizing up or down.
• Scrunched Silk G String - Ice Queen: Scrunched-edge design with a smooth, luxe touch and comfortable elastic that moves with you. The scrunched detailing and elastic construction can feel more forgiving on the skin, which helps if you are new to minimal coverage.
• Silk Brazilian - Ice Queen: Brazilian cut with mid coverage and a signature lace waistband that stretches up to 150%. If a G string feels too minimal, a Brazilian offers more coverage while still feeling barely there, and the stretchy waistband accommodates slight size variations.

Who this sizing approach is for

Best for

• First-time G string buyers who want to get the size right the first time.
• Anyone who is between sizes and needs a clear rule for fixed vs adjustable styles.
• Shoppers who want to understand how a G string should feel before committing.

Not for

• Shoppers looking for full-coverage underwear; a Brazilian or hipster cut may suit better.
• Anyone who prefers a rigid, non-stretch fit; this guide focuses on stretch and adjustable styles.
• People who want to skip measuring and rely only on dress size; that often leads to returns.

Sizing a G string comes down to one measurement and one decision: know your hips, then choose larger for fixed styles and true-to-size for adjustable ones. When in doubt, prioritise comfort over the number on the label, and use the product details to match construction to your needs.