The Warm Up range is cut one full size smaller than Core, Perform, Pulse and Perform Hybrid. If you're a Core Small, order a Warm Up Medium
Every great workout starts with the right foundation.
Tweak G-Strings are seamless, lightweight, and designed to disappear under your leggings so all you feel is you. No rolling, no riding, no VPL. Just comfort that keeps up with your life.
New to Tweak? Take the Find Your Fit quiz below to discover your perfect Fit
Step 1 of 4
What size do you usually wear?
Pick what you normally take in underwear or activewear. No idea? Tap "I'm not sure" — no tape measure needed.
Step 2 of 4
How would you describe your shape?
This helps us fine-tune your size recommendation.
Step 3 of 4
How do you usually train?
We'll match you to the Tweak style built for how you move.
Your result
Recommended style for how you train
EverydayCoreEveryday seamless comfort
High SweatPulseLightweight for high-sweat training
PerformancePerformSecure support for strength sessions
All sizes — your fit highlighted
XS
Syour fit
M
L
XL
⚠️ Warm Up Runs One Size Smaller
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4.9 from 254 reviews
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🚫
No VPL
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💧
Moisture-Wicking
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🔒
No-Roll Waistband
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🌿
Breathable Fabric
Let customers speak for us
Karina Benseman
Love these G’s
Love these G’s, no other comes close to the performance ie comfort, fabric feel, colours delivery times to NZ are fast!!
Anonymous
My wife's new favorite underwear for workouts
I purchased a pair for my wife to try before purchasing multiple pairs.
She says these are her new favorite for working out and runs. The construction is top notch. She says they are very comfortable and better than most g-strings and athletic underwear she has tried. We are both underwear aficionados, and we recognize that the quality exceeds other premier athleisure underwear brands. We will definitely be purchasing more. They truly are seamless and comfortable. No VPL whatsoever.
Theo
Like finding gold
Where have you been, been looking for the perfect G for an outfit and these are perfect
Anouk
Legg day y approved
Love these,Look and feel amazing super comfy and stay put even during leg workouts
Hazel
Love the fit, they just hug the body yet still can adjust the waistband for different outfits and looks
Asher
love
YAY gym bag complete, these are just what I was looking for and they stay where I put them even during a HIT workout
Esme
Great selection
Honestly didn't expect them to be this breathable and light. Perfect for long gym days.
Cleo
Best
Had to try them and so glad I did they are better than expected, they fit great, feel amazing and do the job 5* +++
Kaia
Tweak, keep them coming
I have already ordered more, they are great for any occasion
Atlas
Great colours amazing fit
Love the colour range and how smooth they feel. I've already ordered more.
