4.4 (19 reviews)
4.4
19 reviews
5 13
4 2
3 3
2 1
1 0

Onyx Forge

8cm internal lift. Invisible from the outside.

£59.00
£59.00 £74.00
you save £15 Sold out
Check Free shipping
Shoes 100% Hidden Height Boost

Two pairs, 40% off

Add any two pairs to your cart, in any models or sizes you like. The discount is applied automatically at checkout.

£44.25 per pair against £74.00 list

$
Money-Back Guarantee
Return your order within 30 days for a full refund.
Free Size Exchanges
Doesn't fit? We'll resend your next size for free.
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Height
Boost
Orthopedic
Insole
Genuine
Leather
Anatomic
Comfort
Discreet
Design

Description

Onyx Forge — Premium Elevator Dress Shoes | Zavvox

Onyx Forge by Zavvox: The Onyx Forge delivers a refined 8 cm (3.15 inches) height increase in a sleek formal design. Crafted in premium black, it enhances presence and confidence in professional settings. Crafted as premium men's elevator dress shoes in black with a 8 cm (3.15 inches) discreet height increase, the Onyx Forge adds elevated stature while keeping a modern, refined silhouette. Built for everyday wear in European cities, work meetings, dates and evening outings, with comfort cushioning and anti-slip outsole for all-day stability.

Why choose the Onyx Forge

  • Discreet height boost: 8 cm (3.15 inches) that stays invisible from the outside, no platform exposure.
  • Premium construction: Selected upper materials and reinforced stitching designed to last seasons of daily use.
  • All-day comfort: Memory-foam style insole, breathable lining and lightweight outsole reduce fatigue on long walks.
  • Versatile styling: Pairs effortlessly with jeans, chinos, tailored trousers and smart-casual outfits.
  • European-ready: Sized for EU fit, designed for modern European men looking for a confident, taller posture.

Size guide & how to wear

  1. Measure your foot: Length in centimeters at the end of the day for best accuracy.
  2. Pick the closest EU size: If you are between sizes, choose the larger one for added comfort.
  3. Break in gradually: Wear them 1-2 hours indoors before going out, to let the insole adapt.
  4. Pair with cropped pants or chinos: Lets the silhouette of the shoe speak while keeping height invisible.

Care and maintenance

  • Wipe with a soft damp cloth after each use to keep upper clean.
  • For deeper cleaning, use a dedicated sneaker foam cleaner — avoid harsh detergents.
  • Store with shoe trees or stuffed paper to preserve shape between uses.
  • Keep away from prolonged direct sun and high heat sources.

Guaranteed delivery and easy returns

  • 30-day returns across the UK and EU.
  • Protected packaging for safe doorstep delivery.
  • Secure checkout with the most trusted payment methods.
  • Dedicated support at support@zavvox.com for sizing and order help.

Shipping & Returns

Free shipping on all orders.

Please allow us the following shipping time:
- Track & trace shipping (2-10 working days)


30-Days Hassle Free Returns

We offer 30-day free returns for store credit. For a refund back to the original payment method, We will charge a small freight fee to dispatch your replacement, depending on your location. Products must be returned in their original condition and with all tags and liners attached.

30 Days Money Back Guarantee

Our 30 Day Money Back Guarantee means you can shop and return your order for any reason, provided it is within the 30-Day returns period. You can find out more about our returns & exchanges policy.

Onyx Forge

Onyx Forge

£59.00
£59.00 £74.00
you save £15 Sold out
View full details

See the difference Zavvox makes.

See how Zavvox adds height naturally, without compromising style.

Trustpilot reviews

Excellent 4.8 / 5

  • Finally Found the Perfect Pair

    I was sceptical at first, but these trainers exceeded my expectations. They’re incredibly comfortable, look premium and the added height feels completely natural. I’ve already ordered another pair.

    James Wilson · Manchester

  • Comfortable From Day One

    No breaking-in period at all. I wore them for a full day around London and my feet felt great. The quality is outstanding and nobody can tell they give you extra height.

    Daniel Murphy · Birmingham

  • Stylish Without Looking Bulky

    Exactly what I was looking for. Modern design, excellent materials and the lift is completely discreet. They look like premium trainers, not elevator shoes.

    Oliver Thompson · London

  • Worth Every Penny

    The craftsmanship is excellent and they feel much more expensive than they are. Comfortable enough for everyday wear and smart enough to wear out in the evening.

    Ryan Carter · Leeds

  • More Confidence Every Day

    I wasn’t buying them just for the extra height, I wanted something stylish too. Zavvox delivered both. They fit perfectly and have quickly become my favourite pair.

    Thomas Brooks · Bristol

    Instant Height Boost Instant Height Boost
    Elevated Insole Elevated Insole
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    Instant Height Boost Instant Height Boost
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    Instant Height Boost Instant Height Boost
    Elevated Insole Elevated Insole
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    Instant Height Boost Instant Height Boost
    Elevated Insole Elevated Insole
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    The Difference is inside

    BUILT IN. NEVER SEEN.

    What looks like a premium everyday trainer hides a discreet height-boosting design within the sole.

    Zavvox adds up to 8cm of natural-looking height without revealing how. No obvious lifts. No unusual shape. Just a taller presence from the moment you put them on.

    Watch how the hidden lift works.

    The Difference You Can Feel

    STAND TALL. FEEL UNSTOPPABLE.

    Height changes more than how you look.

    It changes how you walk into a room, how you carry yourself and how confidently you face every day.

    With up to 8 cm of discreet lift, Zavvox shoes help you look taller naturally—without anyone noticing why.

    Invisible by Design

    UP TO 6 - 10 CM. ZERO COMPROMISE.

    Every pair is engineered with an invisible height-increasing insole that blends seamlessly into the shoe.

    No bulky heels.

    No awkward posture.

    Just natural height, exceptional comfort and effortless confidence.

    Designed for Every Moment

    ONE PAIR. EVERY OCCASION.

    From the office to dinner, weekend city breaks to evenings out, Zavvox trainers are designed to move effortlessly with your lifestyle.

    Timeless design, premium comfort and discreet height enhancement - so you never have to choose between looking your best and feeling your best.

    • $
      Money-Back Guarantee

      Return your order within 30 days for a full refund.

    • Free Size Exchanges

      Doesn't fit? We'll resend your next size for free.

    FAQ

    Yes. Each model from Zavvox has an internal elevation platform combined with an anatomical insole, which provides up to 10 cm of extra height in a completely natural and discreet way.

    No. The design of Zavvox models is developed to maintain proportions identical to regular shoes.

    On the outside, no one notices anything — but you'll feel the difference in posture and presence.

    Yes! All Zavvox models come with orthopedic insoles, lightweight soles, and a perfect fit for the foot, providing comfort and stability throughout the day.

    The idea is to make you taller without compromising comfort.

    Once your order is shipped, you will receive a tracking code via email.

    You can use this code on our website to check the status of your order.

    Yes! The first exchange is completely free. Just contact our support via email, and we will exchange it for you at no cost!