Sagami Original 001 vs Okamoto 001: Side by Side
By the OOBiz product information team. Reviewed on November 9, 2026.
The short answer
Sagami Original 001 and Okamoto 001 are both polyurethane condoms, and neither is made with natural rubber latex. They come from two different Japanese companies. The main differences are how each maker states thickness, the sizes each maker lists, and how many condoms come in a box.
Side by side
| Sagami Original 001 | Okamoto 001 | |
|---|---|---|
| Company | A brand of Sagami Rubber Industries Co., Ltd., a Japanese company | Okamoto Industries, Inc. |
| Material, as the maker states it | Polyurethane (ポリウレタン) | Polyurethane; Okamoto's own term is water-based polyurethane (水系ポリウレタン) |
| Thickness, as the maker states it | 0.01 mm by the maker's measurement; 18 microns (0.018 mm) given as the standard | 0.01 mm class (0.01ミリ台), by the maker's measurement |
| Sizes | Regular: 170 mm long, 36 mm diameter. L: 190 mm long, 38 mm diameter | Regular and L. Okamoto's product pages do not give mm figures |
| Versions on our store | Regular, L | Standard, L, Rich Lubricant, L Rich Lubricant |
| Pieces per box on our store | Regular: 5 or 10. L: 10 | 3 |
Each maker measures in its own way, so the two thickness figures are not a like-for-like test result. They are what each company says about its own product.
What is the same
- Both are polyurethane, not natural rubber latex.
- Both are sold here in Japanese retail boxes, so the box and the leaflet are printed in Japanese. Each product page sets out the main points in English.
- Both boxes carry a printed expiry date.
What is different
- How thickness is written. Sagami gives a figure (0.01 mm) and a standard thickness (18 microns). Okamoto gives a class (the 0.01 mm range).
- Size information. Sagami publishes length and diameter for both sizes. Okamoto names the sizes (regular and L) but its product pages do not give mm figures.
- Box size. Okamoto 001 comes 3 to a box; Sagami Original 001 comes 5 or 10 to a box.
Common questions
Is Sagami 001 or Okamoto 001 latex-free?
Neither is made with natural rubber latex. Both makers list polyurethane as the material.
Which one is thinner?
Both makers describe their 001 as 0.01 mm, each by its own measurement. Sagami also gives 18 microns as its standard thickness. We do not compare them beyond what the makers state.
Which one is bigger?
Sagami lists its L size at 190 mm long with a 38 mm diameter. Okamoto does not publish mm figures for its 001 sizes, so we cannot compare them directly. For more on sizes, see Japanese condom sizes: diameter, width and length.
You can see both on our Sagami collection page and Okamoto collection page.
Related guides
- Sagami Original 001: Material, Size and Thickness
- Okamoto 001 vs 002 vs 003: What Is Different
- Okamoto and Sagami Reference Table: Material, Thickness and Size
Sources
- Sagami official shop, Sagami Original 001: https://www.sagami-shop.com/SHOP/MC0070.html (checked November 7, 2026)
- Sagami official shop, Sagami Original 001 L: https://www.sagami-shop.com/SHOP/MC0071.html (checked November 7, 2026)
- Okamoto, ZERO-ONE 3 product page: https://okamoto-condoms.net/okamoto001/okamoto001-3/ (checked November 7, 2026)
- Okamoto, ZERO-ONE L size 3 product page: https://okamoto-condoms.net/okamoto001/okamoto001-l-3/ (checked November 7, 2026)
Condoms reduce, but do not eliminate, the risk of pregnancy and sexually transmitted infections. Read and follow the package instructions. Do not use a damaged or expired product.
Brand names and trademarks belong to their respective owners. OOBiz (OOBIZ LLC) is an independent reseller and is not affiliated with Sagami Rubber Industries Co., Ltd. or Okamoto Industries, Inc.