What is the length measurement from waist to finished in a size 38 waist

If you mean what I think you mean, the depth, for example from waist to the bottom seam around your hips, I just measured an older pair of my 38's, and it's 7.5 inches, or approx. 200mm. With my recent purchase I bought larger, but obviously still have older pairs.

how is waist size determined - is it expanded or otherwise - My waist is 46", yet I wear medium size with comfort?

My husband is a 46in and he found the large were fine. Not baggy as they would have been if he had gone up a size. The company themselves were very good with returns as we mistakenly bought the XL thinking they were right, but really needed the large. Good service and communication. Quality of items is good and they wash very well.

Sock Stack 6 Pairs Mens Briefs White Y Fronts Underpants

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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NZ$50

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Sold byAmazon New ZealandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🩲 Elevate your essentials: Classic comfort that means business.

STAY COOL DRY - Advanced moisture-wicking technology ensures breathable comfort during your busiest days and workouts.
SNUG FIT NO PINCH - Flexible elastic waistband adapts to your shape for secure support without discomfort or digging in.
ESSENTIAL 6 PACK VALUE - Stock your drawer with six durable pairs, available in sizes S to 5XL—perfect for every professional’s daily rotation.
ALL DAY NATURAL COMFORT - Soft, premium cotton fabric keeps you fresh and irritation-free from morning meetings to late-night deadlines.
CLASSIC Y FRONT CONVENIENCE - Timeless design with easy front access—because practicality never goes out of style.

Sock Stack’s 6-pack of men’s white Y-front briefs delivers premium 100% cotton softness combined with breathable, moisture-wicking fabric. Designed with a flexible waistband and classic Y-front for practical support, these briefs offer durable, irritation-free comfort in sizes S through 5XL. Ideal for professionals seeking reliable, everyday underwear that balances tradition with modern performance.

Specifications

ASIN	B01H7B67ZG
ASIN	B0GXP58JH7
Age Range Description	Adult
Best Sellers Rank	11,465 in Fashion ( See Top 100 in Fashion ) 22 in Men's Underwear Briefs
Bottom Style	Boxer Briefs
Brand Name	Sock Stack
Colour	White
Country Of Origin	China
Customer Reviews	4.1 4.1 out of 5 stars (2,202)
Customer reviews	4.1 4.1 out of 5 stars (2,202)
Date First Available	18 April 2026
Department	Men's
Fabric Type	100% Cotton
Fit Type	Comfort
Item Type Name	Boxer Briefs
Manufacturer	Sock Stack
Manufacturer	Sock Stack
Material Type	Cotton
Pattern	Solid
Product Care Instructions	Machine Wash
Rise Style	High
Size	M
Special Features	Anti-Odour
Style Name	Classic
Theme	solid
UPC	616932075322
Unit Count	6.0 count

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