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Discover Your Bone Structure Type, Free 12-Question 骨格診断

Free bone structure body type test (骨格診断), 12 quick questions revealing whether your natural frame is Straight (ストレート), Wave (ウェーブ) or Natural (ナチュラル). A self-assessment styling guide, instant result, no signup.

12 questions2 min
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The basics

What is the Bone Structure Type?

Bone structure typing (骨格診断 / kokkaku shindan) is a Japanese styling framework that sorts people into three body-frame types: Straight, Wave and Natural. It reads your skeletal structure and how flesh sits on it — not your weight or size — and it is one of the most popular styling systems in Japan. The Japanese names are ストレート (Straight), ウェーブ (Wave) and ナチュラル (Natural).

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This is a self-assessment quiz, not a medical or professional diagnosis. It uses 12 quick observations about your frame to estimate your dominant type, then suggests the silhouettes, fabrics and necklines that tend to flatter it.

Closely related
  • Kibbe Body Type test
  • Color Season test
  • Face Score
What you get

What You'll Discover

Whether your dominant frame is Straight, Wave or Natural
How your three frame scores break down
Which silhouettes, fabrics and necklines flatter your natural lines
The fabrics and tailoring to lean into — and which ones fight your frame
How to shop and build a wardrobe around your dominant type

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FAQ

Frequently Asked Questions

5 questions

  • A Japanese styling method that groups bodies into three frame types — Straight, Wave and Natural — based on bone structure and flesh distribution rather than weight, to guide flattering clothing choices.

  • No. This is a free self-assessment quiz inspired by the framework, not an official or professional diagnosis. For a definitive result, consult a trained image consultant.

  • About 2 minutes — 12 quick forced-choice questions about your frame.

  • Straight (ストレート) frames carry weight on the front of the body with a defined, three-dimensional torso and tend to suit clean, structured lines. Wave (ウェーブ) frames are softer and lower-centred with a slim upper body, and flatter movement, drape and detail. Natural (ナチュラル) frames read as larger-boned and angular at joints, and wear relaxed, oversized, textured pieces well.

  • No. Kibbe sorts you on a yin–yang scale across thirteen image types, while 骨格診断 uses just three skeletal frame types. They overlap in spirit — both dress you to your natural lines rather than your size — but use different categories. You can take our Kibbe Body Type test to compare.

Take the Bone Structure Body Type Test (骨格診断) Now

Discover your Bone Structure Type profile. 12 questions, 2 min.

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Explore all results in depth

Already taken the test, or just curious? Read the in-depth guide for any result — strengths, challenges, career matches, famous people, and FAQs.

Straight — The Tailored Frame
Straight — The Tailored Frame

Angular, lean and architectural — you wear sharp tailoring like it was cut for you

Wave — The Soft-Lined Romantic
Wave — The Soft-Lined Romantic

Soft, curving and gracefully proportioned — drapey fabrics and gentle lines suit you

Natural — The Framework-Forward Athlete
Natural — The Framework-Forward Athlete

Strong joints, prominent frame and an athletic line — relaxed, textured styling suits you

© 2026 JobCannon. All assessments are based on validated psychological frameworks.

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