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Fit & Sizing Standard

Size, Fit & Product Comparison

Find your perfect model and ideal fit across our Women, Teen Girls, and Men collections. Compare all 6 styles side-by-side, inspect height & weight matrices, and view precise garment measurements.

智慧尺寸推薦計算機

根據您的身高體重快速計算最契合的推薦尺寸

智慧推薦尺寸

Official Specification Matrix

Gray Bottle Product Comparison Guide

Compare absorbency, thickness, sizes, colors, box packaging, and health-tech features across all models.

Model & Edition
Price
Size
Packaging
Colors Included
Thickness
Absorbency
Breathable
Antibacterial
Odor Free
Far Infrared
Cramp Relief
Waist Cut
Action
NT$3,990 S – 4XL 1 Box (3 Pcs)
3x Black
Thick
80 ml Heavy Flow / Overnight
— —
Normal-waisted
View
NT$3,990 S – 4XL 1 Box (5 Pcs)
2x Black
1x Purple
2x Deep Beige
Thin
20 ml Daily Backup / Light Flow
— —
Normal-waisted
View
NT$3,990 S – 2XL 1 Box (3 Pcs)
1x Light Pink
1x Light Cyan
1x Light Blue
Thick
80 ml Heavy Flow / School Guard
— —
Normal-waisted
View
NT$4,190 S – 4XL 1 Box (5 Pcs)
2x Black
1x Purple
2x Deep Beige
Thin
20 ml Daily Backup + Abdomen Warming
FIR Thermal Cramp Relief
High-waisted
View
NT$4,490 S – 4XL 1 Box (3 Pcs)
3x Black
Thick
80 ml Maximum Overnight Flow + FIR
FIR Thermal Cramp Relief
High-waisted
View
NT$2,990 S – 6XL 1 Box (3 Pcs)
1x Grey + Black
1x Green + Black
1x Red + Black
Thin
20 ml Daily Micro-Absorbency & Care
FIR Thermal —
3D Ergonomic Boxer Brief
View
Mobile Quick Cards tap product to view
Gray Bottle Period Panties - Classic Version
Classic Best-Seller

Gray Bottle Period Panties - Classic Version

NT$3,990 / 1 Box (3 Pcs)
Available Sizes S – 4XL
Absorbency / Leakage 80 ml Heavy Flow / Overnight
Thickness Profile Thick Style
Waist Cut Normal-waisted
99% Antibacterial Odor Free
View Details
Gray Bottle Air - Classic Version
5-Piece Value Pack

Gray Bottle Air - Classic Version

NT$3,990 / 1 Box (5 Pcs)
Available Sizes S – 4XL
Absorbency / Leakage 20 ml Daily Backup / Light Flow
Thickness Profile Ultra-Thin Style
Waist Cut Normal-waisted
99% Antibacterial Odor Free
View Details
Gray Bottle Period Panties - Teen Girls Style
Designed for Teens

Gray Bottle Period Panties - Teen Girls Style

NT$3,990 / 1 Box (3 Pcs)
Available Sizes S – 2XL
Absorbency / Leakage 80 ml Heavy Flow / School Guard
Thickness Profile Thick Style
Waist Cut Normal-waisted
99% Antibacterial Odor Free
View Details
Gray Bottle Air Plus - High-Waisted Version
FIR Warming + High Waist

Gray Bottle Air Plus - High-Waisted Version

NT$4,190 / 1 Box (5 Pcs)
Available Sizes S – 4XL
Absorbency / Leakage 20 ml Daily Backup + Abdomen Warming
Thickness Profile Ultra-Thin Style
Waist Cut High-waisted
99% Antibacterial Odor Free Far-Infrared Relieve Cramps
View Details
Gray Bottle Period Panties - Far-Infrared Warmth Edition
Maximum Protection + FIR

Gray Bottle Period Panties - Far-Infrared Warmth Edition

NT$4,490 / 1 Box (3 Pcs)
Available Sizes S – 4XL
Absorbency / Leakage 80 ml Maximum Overnight Flow + FIR
Thickness Profile Thick Style
Waist Cut High-waisted
99% Antibacterial Odor Free Far-Infrared Relieve Cramps
View Details
GRAY BOTTLE FOR MEN - Men's Far-Infrared Prostate Underwear
Extended Size up to 6XL

GRAY BOTTLE FOR MEN - Men's Far-Infrared Prostate Underwear

NT$2,990 / 1 Box (3 Pcs)
Available Sizes S – 6XL
Absorbency / Leakage 20 ml Daily Micro-Absorbency & Care
Thickness Profile Ultra-Thin Style
Waist Cut 3D Ergonomic Boxer Brief
99% Antibacterial Odor Free Far-Infrared
View Details

Technology & Performance Highlights

80 ml Heavy Lock (Full Protection)

Multi-layer absorbent core engineered for heavy menstrual flow, postpartum recovery, and full-night leak protection. Replaces pads entirely.

20 ml Everyday Air (Ultra-Thin)

Whisper-thin, ultra-breathable gusset for spotting, ovulation days, light discharge, and male micro-leakage. No disposable liners needed.

Far-Infrared Resonance (FIR)

Ceramic micro-particles woven into the fabric emit 4–14 µm thermal rays to warm the lower abdomen, soothe uterine cramps, and promote pelvic microcirculation.

5A Physical Antibacterial (>99.9%)

Lab-tested physical antibacterial barrier effective against Candida albicans, Staphylococcus aureus, and E. coli, neutralizing odors without chemical washouts.

i
Friendly Reminder: Individual body shapes vary, and personal preferences for fit may differ. The size data provided is for reference only. If you are unsure about your size, please refer to the “Detailed Size Comparison Chart” below.
Teen Version Guidance: The Teen Version is specifically designed for young girls experiencing their first menstrual cycle. If selecting the Teen Version, please refer to the detailed size chart for accurate measurements (Sizes S to 2XL).
M
Men's Health Sizing: GRAY BOTTLE FOR MEN features an extended size range from S up to 6XL with a 3D ergonomic pouch engineered for continuous male pelvic wellness and comfort.

HEIGHT & WEIGHT SIZE CHART

Recommended sizes based on height and body weight

WEIGHT: KG  |  HEIGHT: CM
WEIGHT (kg)
HEIGHT (cm)
35–40 40–45 45–50 50–55 55–60 60–65 65–70 70–80 80–90
145–150 cm XS S M L XL 2XL 3XL 4XL —
150–155 cm XS S M L XL 2XL 3XL 4XL —
155–160 cm XS / S S M L XL 2XL 2XL 3XL 4XL
160–165 cm — S S M L XL 2XL 3XL 4XL
165–170 cm — S S M L XL XL 2XL 3XL

Measurement Points

A B D G C
A: 1/2 Waist
B: 1/2 Hip
C: 1/2 Length
D: Side Seam
G: 1/2 Leg Opening

DETAILED SIZE COMPARISON CHART

Garment flat measurements (cm)

UNIT: CM
Measurement Part XS S M L XL 2XL 3XL 4XL Tolerance
± cm
A 1/2 WAIST 27 29 31 33 35 37 39 41 1.0
B 1/2 HIP 32.5 35 37.5 40 42.5 45 47.5 50 1.0
D SIDE SEAM 10.5 11 11.5 12 12.5 13 13.5 14 0.5
G 1/2 LEG OPENING 21.3 22.5 23.8 25 26.3 27.5 28.8 30 0.8
C 1/2 LENGTH 24 25 26 27 28 29 30 31 0.8

How to Measure Yourself Accurately

Follow these simple steps with a soft measuring tape for the most accurate fit.

How to measure waist and hip circumference with a tape measure for period underwear sizing
Visual Reference: Positioning tape measure around natural waist and fullest part of hips Precision Fit Protocol
1

Waist (A)

Wrap the measuring tape around the narrowest part of your natural waist, keeping it flat and comfortably snug.

2

Hips (B)

Stand with your feet together and measure around the fullest part of your hips and buttocks.

3

Between Two Sizes?

Our period panties feature adaptive ergonomic stretch. If your measurements fall between sizes, select the larger size for maximum comfort.

Ready to experience leak-free comfort?

All styles are backed by our 7-day hygiene-safe guarantee.

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