5. How do I pick the right size?

We use standard European (EU) sizes (40, 41, 42, etc.). Pro Tip: Check our Size Guide on the website. Not sure? Just pick one size bigger . It’s always better to have a bit of extra room than for it to be too tight!

Ratio Onyx Boots 12CM Invisible Boots

Name: Ratio Onyx Boots 12CM Invisible Boots
Brand: Ratio | Stand Taller. Look Sharper.
Price: 299.99 MYR
Availability: InStock

RM299.99 MYR

Real Measured
Height

Ready Stock
Malaysia

Ships in 1–2
Business Days

30-Day Size
Exchange

The Ratio Onyx Boots are designed for those who want maximum height, stronger presence, and a bold elevated silhouette.

Featuring a real measured +12CM height increase, this pair gives you a powerful boost while maintaining a sharp black combat boot aesthetic.

Built with a glossy black upper, lace-up structure, and chunky outsole, the Onyx Boots create a stronger stance, cleaner proportions, and a more confident overall look.

Due to the high internal elevation design, we recommend choosing one size bigger than your usual shoe size for a more comfortable fit.

WHY CHOOSE ONYX BOOTS?

✓ Real Measured +12CM Height Increase
✓ Maximum Presence & Stronger Silhouette
✓ Bold Black Combat Boot Design
✓ Better Proportions & Leg Line
✓ Lace-Up Support For Secure Fit
✓ Chunky Outsole For Stronger Stance
✓ Recommended To Size Up

SIZE RECOMMENDATION

Please choose 1 size bigger than your usual shoe size.

Example:
Usual size 42 → Recommend size 43
Usual size 43 → Recommend size 44

This helps provide better comfort due to the internal height increase structure.

PERFECT FOR

🖤 Streetwear Styling
🎤 Events
📸 Outfit Shooting
❤️ Dates
🏙 Night Out
🎉 Social Occasions

Better Proportions. Better Presence.

Use collapsible tabs for more detailed information that will help customers make a purchasing decision.

Ex: Shipping and return policies, size guides, and other common questions.

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✦

WHY CHOOSE RATIO.MY?

Every Pair
Measured

每双实测增高

Real measured height increase, not just estimated claims.

No DIY
Insoles

不用自己垫鞋垫

Built-in height design for a cleaner, more stable fit.

Better
Proportions

整体比例更好看

Helps improve your overall look and outfit balance.

Looks
Natural

外观自然不突兀

Invisible height boost with a clean outer shape.

Comfortable
Daily Wear

日常穿着舒适

Lightweight and soft, made for all-day wear.

Ready Stock
Malaysia

马来西亚现货

Fast local shipping, ready to ship from Malaysia.

01

BUILT IN

Integrated height structure

The lift is built into the shoe for a cleaner, more secure fit.

02

MEASURED

Real height increase

We measure the actual result instead of counting exaggerated insole thickness.

03

NATURAL

Clean outer profile

Designed to look like a regular, well-proportioned everyday shoe.

BUILT-IN VS. ADDED-ON

Why the construction matters

✓ Ratio Built-In

Thick DIY Insole

Construction

Integrated into the shoe

Added inside a regular shoe

Heel fit

Designed around the lift

Uses extra space inside

Outer look

Clean, balanced profile

Fit can feel less natural

30-Day Size Exchange

Try your pair indoors. If the size is not right, contact us within 30 days of delivery while the shoes and packaging are still in original condition.

View Warranty & Returns policy

Ask About Sizing

FAQs

Normal shoes aren't built for extra height. If you just stuff a thick insole inside, your heel will keep popping out and it's hard to walk. Ratio shoes are engineered to be tall from the ground up. Everything is built-in, so you stay steady and comfortable without feeling like you're balancing on a wedge.

Nope. It’s our secret. From the outside, they look like premium, stylish shoes. The extra height is hidden deep inside the structure. No big heels, no weird shapes—just you looking taller naturally.

We use high-quality leather and soft cushions. It’s like walking on a good mattress. Even if you stand all day at work or a wedding, your feet won't feel the "burn" like they do with cheap insoles.

We have different options depending on your goal. You can choose to be 5cm taller (subtle) or go all the way up to 10cm taller for a major boost.

We use standard European (EU) sizes (40, 41, 42, etc.).

Pro Tip: Check our Size Guide on the website.
Not sure? Just pick one size bigger. It’s always better to have a bit of extra room than for it to be too tight!

If you want to move a lot, pick our Sneakers. They are made for action. Our Leather boots/shoes are best for the office, dinners, or events where you need to look your best.

Shipping: It takes about 1 to 2 business days to reach your door.

Returns: If they don't fit, you can send them back within 30 days. Just keep them clean and don't wear them outside until you're sure you want to keep them!

Ratio Onyx Boots 12CM Invisible Boots

Find your Ratio size