Between the internal and external condom, the difference is not simply a matter of anatomy: it is a choice that touches on comfort, material, practice, and personal freedom. This comparative guide helps you see things clearly, without judgement and with all the detail you need to make a truly informed decision.
Internal and external condoms: what are we talking about?
The external condom (known as the "male" condom) is a fine sheath that rolls onto an erect penis before any intimate contact. The internal condom (known as the "female" condom) is a soft pouch with two rings — one inserted into the vagina or rectum, the other remaining outside — which the wearer places themselves, independently of their partner's erection. Both provide dual protection: contraception and a barrier against sexually transmitted infections, provided they are used correctly and without tearing.
The internal condom is still rarely distributed in France; at SoPigalle, the Condoms selection focuses on the most accomplished external references on the market, notably the LELO HEX and SKYN ranges, detailed below.
What are the differences in material?
The material determines sensation, lubricant compatibility, and skin tolerance. Here are the main families available among the references offered at SoPigalle:
- Natural latex — this is the material used in the LELO HEX Original and LELO HEX Respect XL ranges. Stated thickness: 0.045 mm. Compatible only with water-based or silicone-based lubricants; oils (including natural ones) degrade latex. This option is not suitable for people with a latex protein allergy.
- Organic latex — the LELO HEX Bio uses the same hexagonal structure in a latex derived from organic farming, with L-arginine in the formulation according to the manufacturer. The same lubricant compatibility rules apply.
- Polyisoprene (latex-free) — the SKYN Original, SKYN Large, and SKYN Intense Feel ranges are made from SKYNFEEL polyisoprene: free from latex proteins, with no rubber smell, and more stretchable according to the manufacturer. A relevant option for sensitive skin or those with a natural latex allergy. Lubricant compatibility: water-based only (polyisoprene, like latex, is degraded by fatty substances).
- Natural rubber latex — Mister Size condoms conform to the DIN EN ISO 4074 standard as stated by the manufacturer, with a thickness of 0.05 mm and five nominal widths available (47, 49, 53, 60, and 69 mm). To find out more about compatible lubricants, consult our guide Lubricant compatible with sex toys: how to choose based on your practice and material?
The internal condom, for its part, is most commonly made from polyurethane or nitrile — two materials compatible with oil-based lubricants, which is a notable advantage. These references are not currently part of SoPigalle's selection.
How is each type of condom put on?
The external condom is unrolled onto an erect penis, from tip to base, squeezing the air out at the end. It must be removed immediately after ejaculation, before detumescence, to prevent slipping. The correct nominal width is crucial: a condom that is too narrow is uncomfortable and weakens the barrier; one that is too wide will slip and lose its effectiveness.
- Nominal width 54 mm: LELO HEX Original — the standard reference in the range.
- Nominal width 56 mm: SKYN Large — the only published measurement for the SKYN range.
- Nominal width 58 mm, 10% longer: LELO HEX Respect XL — for greater length and width.
- Five widths (47, 49, 53, 60, 69 mm): Mister Size — the most precise range in terms of fit.
The internal condom is inserted before or during intercourse, without depending on an erection. The inner ring is positioned against the back of the vagina (or rectum), whilst the outer ring remains visible at the entrance. Insertion takes a little practice, but it grants complete autonomy to the person using it.
Compatibility with lubricants and sex toys
The rule is simple and admits no exception: latex and polyisoprene are incompatible with oil-based lubricants (oil, butter, petroleum jelly, thick silicone-based lubricants). Contact degrades the membrane within minutes. Only water-based lubricants are universally compatible with all the materials mentioned here. To explore this crucial point further, the guide Intimate lubricant: how to choose based on your practice and needs? details every combination.
When a condom is used with a sex toy (dildo, vibrator, plug), a few points deserve attention:
- Covering a sex toy with an external condom makes cleaning easier and allows the accessory to be shared safely.
- Check that the lubricant applied is compatible with both the condom and the material of the sex toy (medical silicone, ABS, etc.).
- A condom should never be reused, even on a sex toy.
- To find out more about caring for your accessories, consult our article How to clean a sex toy.
Which condom for which practice?
Vaginal penetration: both types are suitable. The external condom remains the most common; the internal condom offers an alternative for those who do not wish to depend on an erection, or who have a latex allergy.
Anal penetration: both can be used. As the anal mucosa is more delicate, generous water-based lubrication is strongly recommended. The internal condom can be inserted into the rectum; placing it correctly requires more practice. In case of doubt about technique or persistent discomfort, consult a healthcare professional.
Use with an accessory (dildo, vibrator): the external condom fits over the vast majority of cylindrical sex toys; choose the nominal width closest to the diameter of the accessory. After each use, remove and discard the condom, then clean the sex toy in accordance with the manufacturer's instructions.
Latex allergy: SKYN Original, SKYN Large, and SKYN Intense Feel are made from polyisoprene, free from natural latex proteins. For anal practice or any prolonged use, consult your doctor if you have a history of allergies.
The internal structure of LELO HEX condoms: what are the hexagons for?
The LELO HEX ranges (Original, Bio, Respect XL) are built around a network of 350 hexagons engraved on the inner wall. According to the manufacturer, this lattice contracts and expands to follow the body's shape, limiting slippage without thickening the wall: the thickness remains 0.045 mm across all three ranges. The outside, meanwhile, is perfectly smooth. The HEX Respect XL range adds an advantage noted by the manufacturer: the latex smell is neutralised, which may be appreciated by those sensitive to this sensory detail.
The LELO HEX Original (54 mm) suits the majority of users; the Respect XL (58 mm, 10% longer) is aimed at those seeking more room. Both ranges are available in boxes of 3, 12, or 36 to suit different needs.
FAQ
Can an internal and an external condom be used at the same time?
No. Layering two condoms — two external ones, or one internal and one external — creates friction that increases the risk of tearing for both. A single condom, correctly applied, is more effective than a double layer that fits poorly.
Can the internal condom be inserted well in advance?
Yes, the internal condom can be put in place several hours before intercourse, which is one of its practical advantages. Take care, however, not to displace it during insertion, and ensure that the outer ring remains properly in position throughout.
How do I know which nominal width suits me?
The nominal width corresponds to half the circumference of the condom when laid flat. For an estimate, measure the circumference when erect and divide by two. Mister Size offers five widths (47, 49, 53, 60, and 69 mm) for a more precise fit; the LELO HEX range covers 54 mm (Original) and 58 mm (Respect XL); SKYN Large offers 56 mm. To begin with, we recommend trying several sizes before committing to a box of 36.
Is polyisoprene as strong as latex?
Polyisoprene offers greater elasticity than latex according to the SKYN manufacturer, allowing it to adapt to different anatomies. Its strength is comparable, provided the same precautions are observed: never use an oil-based lubricant, do not use past the expiry date, and store condoms away from heat and direct light.
Can an external condom be used on an anal plug or kegel balls?
A condom can cover certain accessories to facilitate sharing or hygiene. A safety reminder: any anal plug must have a flared base to be used safely; the recommended wearing duration varies depending on the accessory and level of experience. For kegel balls, their use for pelvic floor rehabilitation should be guided by a healthcare professional (midwife, pelvic physiotherapist, or doctor). Consult our guide Which sex toy to choose as a beginner to help you make your first choices.
SoPigalle's advice
The best condom is the one that is applied correctly, stays in place, and whose material suits your skin. Start by identifying your priorities: a possible latex allergy, the need for a precise width, or the desire for autonomy when it comes to application. If natural latex suits you, the LELO HEX ranges offer a choice of widths (54 mm or 58 mm) and compositions (standard or organic) designed with different profiles in mind. If you would rather avoid latex proteins, the SKYN polyisoprene ranges are a solid alternative, available in a smooth (Original), wider (Large, 56 mm), or textured (Intense Feel) version. For the most precise fit, the Mister Size range with its five nominal widths is well worth exploring. In every case, pair your condom with a water-based lubricant, store your boxes away from heat, and do not hesitate to consult a healthcare professional with any questions about your practice or skin tolerance.