Our Guarantee
The Perfect Pair Promise
Your first Tweak order should fit right. If it doesn't fit the way you hoped, we won't leave you guessing — we'll guide you to the size or style that does and send a replacement, free. No pair to post back. Just your perfect fit.
— The Tweak Team
A guided fit exchange for first-time sizing — not a returns or refund offer.
How the Promise works
Reach out
Email support@tweakmeonline.com within 14 days of delivery with your order number, the size and range you bought, and what wasn't right about the fit.
We find your fit
We'll guide you to the recommended replacement size or style — one approved replacement per eligible first-fit claim.
Keep your first pair
For hygiene reasons you don't need to send anything back. Your replacement is final and completes your Promise.
Or get it right first time
Not sure before you order? Take our 30-second Fit Quiz — the fastest way to nail your size the first time.
What it covers: your first Tweak order
First-time sizing or fit issues with CORE, PULSE, PERFORM HYBRID or The Core Duo on your first Tweak order. One Perfect Pair Promise claim per customer. Bought The Core Duo? Your Promise covers one replacement pair.
What it doesn't cover
Change of mind, damage from wear or washing, repeat orders, or knowingly selecting a size outside our Size Guide or Fit Quiz recommendation. Final-sale clearance items (Perform Classic, Warm Up and Classic Duo XS) bought on or after 21 October 2026 aren't covered; earlier purchases keep the terms that applied when you bought them.
Promise or return?
| Perfect Pair Promise | Returns | |
|---|---|---|
| Who | New customers, first order | Any order (final-sale items excluded) |
| Time limit | 14 days from delivery | 30 days from receipt |
| Reason | The fit isn't right | Change of mind |
| What you get | One guided replacement pair, free | A refund once the return is approved |
| Sending it back | Nothing to send — keep your first pair | Unworn, unwashed, tags on, original packaging; you pay postage |
| How often | Once per customer | Any eligible order |
For returns, see our Returns & Refunds Policy.
The Perfect Pair Promise is in addition to your rights under the Australian Consumer Law and any other consumer law that applies to you. If an item is faulty, damaged or not as described, contact us and we'll make it right.
This is separate from our VPL-Free Guarantee, which covers visible panty lines.