Wholesale Hats Sizing Charts

Flexfit Yupoong Hats Sizing

Category	Size (inches)	Size (cm)
One Size Fits Most	Typically around 6 7⁄8" – 7 1⁄2" (with variations from about 6 1⁄2" up to 7 3⁄8")	Varies by style
Fitted S/M	Generally 6 3⁄4" – 7 1⁄4" (one style reports 6 7⁄8" – 7 1⁄4")	54 – 58
Fitted L/XL	Generally 7 1⁄8" – 7 5⁄8" (one style reports 7 1⁄4" – 7 5⁄8")	57 – 61
Fitted XXL	7 3⁄8" – 8"	59 – 64

Richardson Hats Sizing (Explicit Size Ranges)

Size Category	Head Circumference Range (inches)	Examples & Product Lines
XS-SM	Approximately 6½ – 7	Richardson 110 R-Flex Fitted Trucker Hats (also 495, 585, 585T) – “XS-SM” designation appears in several fitted models
SM-MD	Approximately 7 – 7¼	Richardson 487 Official Pulse R-Flex Fitted Hats (also 110, 533) – Often seen as the mid-range for fitted hats
LG-XL	Approximately 7⅜ – 7⅝	Richardson 514 Surge R-Active Performance Hats (e.g., sku 110, 495, 585, 533) – Labeled as “LG-XL” on multiple hats
XL	Approximately 7¼ – 7⅞	Richardson 112 Extra Large Hats explicitly list an XL range (sku R112XL)
OSFM	Approximately 7 – 7¾	Some models, such as the 112 and Mid-Profile Hats, are labeled “OSFM” (One Size Fits Most) with this range
Alternate Range	SM: 6½ – 7 1⁄8 and MD-LG: 7 1⁄8 – 7 3⁄4	Found in Richardson Lite R-Flex Performance Stretch Hats (sku 634); these values align closely with the XS-SM and LG-XL groupings

Adjustable / One Size Fits Most Styles

For many Richardson hats - including most snapbacks, trucker hats, and beanies - the design features an adjustable closure or is simply designated as “One Size Fits Most.” In these cases, no fixed head-circumference range is provided. Examples include:

• Richardson Foamie Hats
• Richardson Beanies
• Richardson Unstructured Hats