Soft Leather Thong with Lycra Back Plus Size 3-100X

What this is

The 3-100X is a plus-size thong with a soft black leather front panel and a stretch Lycra back, sold as one size plus. It is the plus-size cut of the 3-100 style, and the product photograph shows the garment worn: a smooth black leather front with a soft sheen, joined at each hip to a narrow elasticated back that sits high on the hip line.

It belongs to the leather side of the lingerie range rather than the lace or mesh side, so the character of the piece comes from the panel itself — leather has weight and a low sheen that jersey and lace do not, and it holds its shape rather than gathering.

Materials and construction

Two materials do two different jobs here. The front is soft garment leather, which is the visible face of the thong and the part that gives the style its finish. Leather is a natural material, so small variations in grain and in the depth of the black are normal between pieces and are not faults.

The back is Lycra — the brand name for elastane, a synthetic fibre spun into stretch fabrics precisely because it returns to its original length after being pulled. That is what makes a one-size-plus garment workable: the leather front stays a fixed width while the stretch back does the accommodating. The two panels meet at small hip joins visible on either side in the product image.

Because the front panel is leather and not a woven textile, it does not breathe the way cotton does. That is worth knowing before a long day in it, and it shapes the care advice further down.

How to wear it

Pull it on like any thong — there is no hook, zip or tie to work around. Step in, draw it up, and let the Lycra back settle across the hips; the leather front is meant to sit flat rather than to be tugged into place, so a moment spent smoothing it is worth more than pulling at it.

As a styling piece it reads two ways. On its own it is the whole outfit, which is how the photograph presents it. Layered, it is the base of a set — it sits under leather skirts, shorts, harnesses and other leather wear without the seam lines a fuller brief leaves behind, and the black front stays black under most outer layers rather than showing through pale.

Care and storage

Hand wash only, in cool water, and never put this in a machine or a tumble dryer. Heat and agitation are the two things garment leather tolerates least — a warm drum will stiffen and shrink the front panel in a way that cannot be reversed, and the Lycra back loses its stretch in hot water.

Use a mild soap, rinse without wringing, press the water out in a towel, and lay it flat or hang it to dry away from a radiator or direct sun. Store it flat or loosely folded rather than crushed under other garments, so the leather does not take a crease it cannot lose. Do not iron, dry clean or bleach it.

Who it is for

This is a plus-size garment for adults 18 and over who want a leather piece in a thong cut rather than a brief or a short. Someone building a coordinated leather look will use it as the foundation layer; someone who simply likes the material will wear it as a standalone. It is also a sensible first leather piece, because a thong is a smaller commitment than a bodysuit or a skirt in the same material.

If you already own pieces from the leather lingerie range, the 3-100X is the matching thong cut in the plus-size fit. If you prefer a fully stretch garment with no rigid panel, this is not that — the front is deliberately structured.

Good to know

• Leather is a natural hide, so grain, sheen and colour depth vary slightly from piece to piece.
• Anyone with a known leather or elastane sensitivity should choose a different material.
• One size plus is a single cut, not a graded range — check the fit before removing tags.
• Keep it away from oil-based products, perfume and alcohol-based sprays, which mark leather.
• Keep out of reach of children.

Frequently Asked Questions

What is the 3-100X made of?

The front panel is soft leather and the back panel is Lycra stretch fabric. The leather gives the piece its black finish and holds its shape, while the elasticated Lycra back is what allows a single size to fit a range of plus-size bodies.

How do I wash a leather thong?

Hand wash it in cool water with a mild soap and let it air dry flat, away from heat. Do not machine wash, tumble dry, iron, bleach or dry clean it — a hot dryer will stiffen and shrink the leather front panel and will slacken the Lycra back.

Is this a plus size, and does one size plus really fit?

Yes, the 3-100X is the plus-size cut of the 3-100 style and is sold as one size plus. The stretch Lycra back is what gives it its range; the leather front is a fixed width, so if you sit at either extreme of plus sizing it is worth checking the fit at home before removing any tags.

Can I wear it under other clothes?

Yes. The thong cut leaves fewer visible lines than a brief, so it works as a base layer under leather skirts, shorts and other close-fitting outer pieces, as well as being worn on its own.

How is this order packaged?

Orders ship in plain, unbranded outer packaging with no product description printed on the outside. Nothing on the parcel identifies the contents or the category of the item inside.

Product information compiled and reviewed by the Gear Isle product team. We transcribe product specifications directly from manufacturer packaging. Found an error? Tell us.

These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease. Adult novelty device for adults 18 and over. Consult a licensed healthcare professional before use, especially if you have a medical condition. Keep out of reach of children.