Size Guide
Measurement Method Instruction
Prepare the tape measure
Use a soft measuring tape (or string + ruler)
Locate the brow bone.
2 cm above the brow ridge (approximately two finger widths)
Circumference around the head
Keep the tape measure snug but not tight.
Read value
Read value (in cm or inches)
Common Error Messages
- Do not measure hair volume.
- Do not measure by looking down.
- Do not make the measuring tape too loose or too tight.
Video Demo
15-second short video demonstrating the complete measurement process with a real person
Support pause, replay, and full-screen playback | Bilingual subtitles (Chinese & English)
Smart Size Calculator
Size Chart
| Size | Head Circumference (cm) | Head Circumference (inch) | US Size |
|---|---|---|---|
| S | 51-54 | 20-21 1/4" | 6 3/8-6 3/4 |
| M | 54-57 | 21 1/4-22 3/8" | 6 3/4-7 1/8 |
| L | 57-60 | 22 3/8-23 1/2" | 7 1/8-7 1/2 |
| XL | 60-63 | 23 1/2-24 5/8" | 7 1/2-7 7/8 |
Long-Wear Comfort · Sweat-Stain Protection · Auto-Adjustable Fit
FAQ
Q:My head size falls between two sizes. Which one should I choose?
A: Flexiats features adaptive stretch sizing—choose adjacent sizes for a perfect fit. Go up a size for a relaxed look, down a size for a snug fit.
Q:Do hats lose their shape if worn for too long?
A: The Foldpeak™ Biomimetic Folding Visor is crafted from high-performance nanomaterials. It retains its shape after 1000 folds and remains durable over long-term use without deformation.
Q:Can this be machine washed?
A: Hand wash recommended at temperatures up to 30°C. For machine washing, use a laundry bag and select the delicate cycle; do not spin dry.
Q:Do you support returns and exchanges?
A: Free returns within 7 days with shipping insurance. Free one-time exchange if the size doesn't fit.