As someone who works closely with global apparel brands at
Fuki Gymwear, I often get asked:
“Does Fabletics sizing run small, true-to-size, or large?”
Here is a clear sizing breakdown based on fabric construction, fit testing, and OEM experience working with performance-wear brands.
Yes, Fabletics sizing tends to run slightly small — especially in leggings and high-compression styles.
If you're between sizes, going one size up usually provides a more comfortable fit.
Based on fit testing from OEM manufacturing work:
Why:
Fabletics uses mid–high compression knits that naturally fit tighter than lifestyle activewear.
Main reasons:
Their leggings are engineered to be supportive, which reduces stretch ease.
More structure means less flexibility in waist and hip areas.
Athletic builds fit better; curvy bodies may feel restricted.
Performance fabrics feel tighter than Lululemon’s lighter blends.
| Brand | General Fit | Compression Level | Sizing Feel | Website |
|---|---|---|---|---|
| Fabletics | Snug | High | Runs slightly small | https://www.fabletics.com |
| Lululemon | True-to-size | Medium to high | More forgiving | https://shop.lululemon.com |
| Athleta | Flexible fit | Medium | True-to-size | https://athleta.gap.com |
Summary:
Fabletics = most compressive, therefore tightest fit.
From the production side at
Fuki Gymwear：
Brands requesting Fabletics-style fits often ask for:
These design choices naturally make garments fit smaller than lifestyle activewear.
Yes — especially leggings and highcompression sports bras.
If you're between sizes or curvy in the hips, yes.
Most are, because the fabric is dense and compressive.
Mostly, but compression styles vary more than tops or outerwear.
Yes, we manufacture high-stretch, performance-level activewear.
Fabletics sizing generally runs slightly small, especially in leggings designed for compression.
If comfort and mobility matter most, sizing up is the safer choice.
If you like sculpting fits, stay true-to-size.
For brands creating similar activewear,
Fuki Gymwear
supports OEM production with performance fabrics and compression engineering.