Sportswear Sizing Guide & Athletic Apparel Size Chart

Q: How to choose between two sizes for sportswear?

If your measurements fall between two sizes, choose the larger size for comfort fit or the smaller size for athletic compression fit. Consider the fabric stretch level - high-stretch fabrics are more forgiving.

Q: How consistent are sizes across bulk orders?

Size consistency is guaranteed. Our quality control system ensures deviation is kept within ±1cm industry standard across all production runs from 500 to 50,000 pieces.

Professional Guide

How to Measure for Sportswear - Body Measurement Guide

Learn how to take accurate body measurements for athletic apparel with our step-by-step guide. Ensure perfect fit for your custom sports clothing.

How to measure chest for sportswear sizing - body measurement guide for athletic apparel

Chest Measurement

Measure around the fullest part of your chest, keeping the tape horizontal and slightly loose.

How to measure waist for athletic apparel - sportswear sizing measurement guide

Waist Measurement

Measure around the natural waistline, typically at the narrowest point of your torso.

Hip Measurement

Measure around the fullest part of your hips, keeping the tape parallel to the floor.

Shoulder Width

Measure from the edge of one shoulder to the other across your back.

Sleeve Length

Measure from the center back neck, over the shoulder, down to the wrist with arm bent.

Inseam measurement for sports pants - custom athletic apparel fit guide

Inseam Length

Measure from the crotch seam down to the ankle along the inside leg.

Pro Tips for Accurate Body Measurements

Use a flexible measuring tape for accurate sportswear sizing
Measure over thin clothing to get true body dimensions
Keep the tape snug but not tight for athletic apparel fit
Take measurements at the same time of day for consistency
Have someone assist you for better precision in custom sportswear measurement

Men's Sizing

Men's Sportswear Size Chart - Athletic Apparel Sizing

Complete men's athletic apparel size chart with chest, waist, and height measurements. Use this sportswear sizing guide for accurate fit.

Size	Chest (cm)	Chest (inch)	Waist (cm)	Waist (inch)	Height (cm)
XS	84-89	33-35	71-76	28-30	165-170
S	89-94	35-37	76-81	30-32	170-175
M	94-99	37-39	81-86	32-34	175-180
L	99-104	39-41	86-91	34-36	180-185
XL	104-109	41-43	91-96	36-38	185-190
XXL	109-114	43-45	96-101	38-40	190-195
XXXL	114-119	45-47	101-106	40-42	195-200

Compression Fit

Tight-fitting for maximum support and muscle compression during high-intensity training.

Regular Fit

Standard athletic fit with comfortable range of motion for general sportswear.

Relaxed Fit

Loose and comfortable design for casual training and warm-up activities.

Women's Sizing

Women's Sportswear Size Chart - Athletic Apparel Sizing

Complete women's athletic apparel size chart with bust, waist, and hip measurements. Professional sportswear sizing guide for perfect fit.

Size	Bust (cm)	Bust (inch)	Waist (cm)	Waist (inch)	Hips (cm)	Hips (inch)
XS	79-84	31-33	61-66	24-26	86-91	34-36
S	84-89	33-35	66-71	26-28	91-96	36-38
M	89-94	35-37	71-76	28-30	96-101	38-40
L	94-99	37-39	76-81	30-32	101-106	40-42
XL	99-104	39-41	81-86	32-34	106-111	42-44
XXL	104-109	41-43	86-91	34-36	111-116	44-46

Special Notes for Women's Athletic Apparel Sizing

Sports Bras: Choose your sportswear size based on impact level - low, medium, or high. Consider going up one size for better support during high-impact activities.

Yoga Pants & Leggings: Opt for high-stretch fabrics in athletic apparel. If between sizes, select the smaller size for compression fit or larger size for comfort fit.

Kids' Sizing

Kids' Sportswear Size Chart - Children's Athletic Apparel

Complete kids' athletic apparel size chart organized by age groups. Find the right sportswear sizing for toddlers, kids, and youth athletes.

Toddler (2-4 years)

Size	Height (cm)	Weight (kg)
2T	86-92	12-14
3T	92-98	14-16
4T	98-104	16-18

Kids (5-8 years)

Size	Height (cm)	Weight (kg)
5	104-110	18-21
6	110-116	21-24
7	116-122	24-27
8	122-128	27-30

Youth (9-14 years)

Size	Height (cm)	Weight (kg)
9-10	128-140	30-36
11-12	140-152	36-43
13-14	152-164	43-50

Growth Space Recommendation for Kids' Athletic Apparel

For children's sportswear sizing, we recommend adding 2-3cm allowance for comfort and growth. Consider ordering slightly larger sizes in athletic apparel for kids experiencing rapid growth periods to extend garment life.

Global Standards

International Size Conversion Chart - Global Sportswear Sizing

Convert athletic apparel sizes between US, EU, UK, and Asian standards. Our international sportswear sizing guide ensures consistent fit worldwide.

US Size	EU Size	UK Size	Asian Size	Chest (cm)
XS	44-46	34-36	S	84-89
S	46-48	36-38	M	89-94
M	48-50	38-40	L	94-99
L	50-52	40-42	XL	99-104
XL	52-54	42-44	XXL	104-109
XXL	54-56	44-46	XXXL	109-114

BeRunClothes International Sportswear Sizing Consistency

Our 30 years of OEM/ODM experience in athletic apparel manufacturing ensures standardized production with zero sizing deviation across bulk orders. We maintain strict quality control to guarantee consistent sportswear sizing for your global distribution needs, whether US, EU, UK, or Asian markets.

Fabric Science

Fabric Stretch & Fit Guide for Athletic Apparel

Understanding how fabric elasticity impacts sportswear sizing. Learn to choose the right size based on material stretch for perfect athletic apparel fit.

Fabric stretch comparison guide for athletic apparel - sportswear sizing and fit

Fabric Elasticity Impact on Sizing

High Stretch (15-20% elasticity)

Ideal for compression wear and yoga pants. Order true to size or one size down for maximum compression support.

Medium Stretch (10-15% elasticity)

Perfect for general athletic wear. Order your regular size for optimal comfort and performance.

Low Stretch (5-10% elasticity)

Best for training jackets and casual sportswear. Consider sizing up if you prefer looser fit.

Performance Fabrics

Moisture-wicking polyester blends maintain shape retention even after 100+ washes.

Compression Materials

High-elasticity spandex provides 4-way stretch for unrestricted movement.

Natural Blends

Cotton-poly blends offer breathability with moderate stretch recovery.

B2B Solutions

Custom Sportswear Sizing Solutions for Your Brand

Tailored athletic apparel sizing systems for B2B clients. Create custom size charts backed by 30 years of OEM/ODM manufacturing expertise.

Custom sportswear sizing factory - athletic apparel OEM manufacturer

Why Choose BeRunClothes Sizing Solutions

Market-Specific Size Charts

Develop customized sizing standards for US, EU, Asian, or regional markets based on your target audience.

Grading Precision

Expert pattern grading ensures consistent proportions across all sizes from XS to XXXL.

Quality Consistency

Zero sizing deviation guarantee across bulk orders - every piece meets exact specifications.

Low MOQ Flexibility

Test multiple size runs with MOQ as low as 50 pieces per style before committing to large-scale production.

Custom Size Development

Create brand-specific size charts

Size Sample Testing

15-day rapid prototyping service

Quality Verification

Multi-point inspection system

Bulk Order Guarantee

Consistent sizing at scale

Common Questions

Sportswear Sizing FAQs - Common Questions Answered

Get expert answers about athletic apparel sizing, custom fit solutions, and sportswear measurements from our 30 years of manufacturing experience.

How to choose between two sizes?

If your measurements fall between two sizes, we recommend choosing the larger size for comfort fit or the smaller size for athletic/compression fit. Consider the fabric stretch level - high-stretch fabrics are more forgiving. For B2B orders, we offer sample sizing sets to test fit before bulk production.

Do your sizes run true to standard?

Yes. BeRunClothes maintains strict adherence to international sizing standards developed over 30 years of OEM/ODM production. Our sizing is consistent with major sportswear brands. We provide detailed tech packs and pre-production samples to ensure sizing accuracy before bulk manufacturing.

Can you customize size charts for our brand?

Absolutely. Custom size chart development is one of our core B2B services. We analyze your target market demographics, create graded patterns, produce sample size runs, and refine based on your feedback. MOQ of 50 pieces allows flexible size testing before committing to larger orders.

What if my measurements fall between sizes?

For in-between measurements, consider the garment's intended use. High-intensity activities benefit from compression fit (choose smaller size). Low-impact or casual wear works better with relaxed fit (choose larger size). We offer semi-custom sizing options for B2B clients with specific fit requirements.

How consistent are sizes across bulk orders?

Size consistency is guaranteed. Our quality control system includes tolerance checks at cutting, sewing, and final inspection stages. Deviation is kept within ±1cm industry standard. We maintain the same pattern blocks throughout production runs, ensuring identical sizing whether you order 500 or 50,000 pieces.

Do you offer size recommendations for different sports?

Yes. Our sizing experts provide sport-specific recommendations: Cycling jerseys typically run form-fitted (order true to size), yoga wear uses high-stretch fabrics (size down for compression), running apparel allows mobility (order regular size), and gym wear offers options for compression or relaxed fit based on preference.

What size testing services do you provide?

We offer comprehensive fit testing: wear trials with target demographics, size grading verification across full size runs, wash testing to ensure size retention, and competitive benchmarking against market standards. Our 15-day sampling turnaround enables rapid iteration before production commitment.

How do you handle size adjustments after samples?

Size revisions are standard in our development process. After you review samples, we implement approved changes to patterns, produce revised samples for confirmation, and lock specifications before bulk production. Pattern modifications are included in sample development fees - no additional charges for reasonable sizing adjustments.