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How to Choose the Right Condom Size

By ULEX Editorial Team • 4/5/2026

Why Condom Size Matters

A condom that's too tight can break. One that's too loose can slip off. Both scenarios can compromise protection and pleasure. Choosing the right size is one of the most important decisions you can make for your sexual health.

How to Measure

Measure girth (circumference) at the widest point while erect. Width is the critical measurement — not length. Most condoms are long enough for everyone.

  • Under 10 cm girth → Snug/Slim fit
  • 10–12.5 cm girth → Regular (fits most men)
  • 12.5–14 cm girth → Large / XL
  • Over 14 cm girth → XXL

ULEX Size Guide

  • ULEX Classix — Regular width 52mm, fits 90% of men
  • ULEX Classix XL / Ritmix XL — Width 56mm, for greater comfort

Signs of Poor Fit

❌ Condom rolls up during use → Too large ❌ Feels painfully tight → Too small ❌ Leaves red marks → Too small ❌ Slips during intercourse → Too large

Tips for a Better Experience

  1. Pinch the tip before rolling on — this removes air pockets
  2. Leave room at the tip (reservoir)
  3. Roll all the way to the base
  4. Hold the base when withdrawing

A well-fitting condom should feel like a second skin — snug but not painful.

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Contact

LIFETONIX SAS

4 Rue Vauban

67450 Mundolsheim, Bas-Rhin, France

contact@lifetonix.fr

+33767711972

🏆 Certifications

TÜV Rheinland · CE 0197 (Class IIb Medical Device) · ISO 13485 · EN ISO 4074. All ULEX® condoms are 100% individually electronically tested.

🛡️ Medical Device Statement

ULEX® condoms are Class IIb medical devices regulated under EU MDR 2017/745. Manufactured by LIFETONIX SAS, 4 Rue Vauban, 67450 Mundolsheim, France. Authorized EU Representative on file.

⚠️ Usage Notice

Use condoms correctly every time for maximum protection against STIs and pregnancy. Condoms do not provide 100% protection. Keep out of reach of children. Check expiry date before use.

© 2018–2026 LIFETONIX SAS. SIREN: 839682564 | SIRET: 83968256400027 | TVA: FR93839682564 | RCS Strasbourg | Code NAF: 4791A | All rights reserved.

TÜV RheinlandCE 0197ISO 13485€ EURGDPR🇪🇺 EU Shipping