What head size is the "One Size" Minus33 Merino Wool Ridge Cuff Beanie

It means it's for "average" sized domes. The respondents claiming it will comfortably fit all head sizes are likely the same 5'10 guys claiming to be 6'1". I don't wear hats, thus cannot relate to hat size. I however wear a size 62 motorcycle helmet. This is determined by measuring perimeter of dome from just above (15mm) eyebrows. I am 61.8 cm. As delivered new, this beanie is very snug and barely covers down to mid ear. I soaked mine in cold water for 5 minutes then stretched and tugged over my head. Finally, let it air dry at room temp fitted over 1 gal paint can to 'block it', preventing shrinkage. This worked for me such that it doesn't pull down as low as i'd prefer but its no longer so tight to give me a headache.

How many % merino wool?

100% Australian Merino Wool - Lightweight - 18.5 micron - 230/m - helps regulate body temperature Imported. I brought with me two other beanies on my trip to Iceland. Out of the 3 I used this more as it kept me warm (in below zero temperature with wind chill)

Is this hat thin enough to wear under a bike helmet?

Hello, This hat can be worn under a helmet. It is approx. 3mm in thickness, yet still very warm. Let us know if you have any other questions! - Minus33 Merino Wool Clothing

Is it good choice to wear under -20 degree Celsius?

Merino Wool is very warm while also being very lightweight. I have worn mine at -4 F, which is -20 C, and been very comfortable.

100 Merino Wool Cuff Beanie Warm Winter Hat Novelty Beanie

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Description

🧢 Elevate your winter game with the beanie that works as hard as you do!

STAY DRY STAY WARM - Advanced moisture-wicking fabric insulates even when wet, keeping you cozy in unpredictable weather.
ALL DAY COMFORT ZERO ITCH - Premium 18.5 micron Merino wool delivers unmatched softness and breathability for every adventure.
LIGHT AS AIR WARM AS FIRE - At just 2.4 oz, this beanie packs easily and fits under helmets without bulk—perfect for active lifestyles.
ONE SIZE FITS MOST FITS YOUR LIFE - Designed to comfortably fit head circumferences from 17 to 25 inches, making it the go-to winter essential.
TRUSTED HERITAGE MODERN PERFORMANCE - Minus33’s century-old wool expertise ensures quality you can rely on, backed by 9,000+ glowing reviews.

This 100% Merino Wool Cuff Beanie by Minus33 combines ultra-soft 18.5 micron wool with a lightweight 2.4 oz design, offering superior warmth, breathability, and moisture management. Engineered with a UPF 50+ rating and flatlock seams for comfort, it fits most head sizes (17-25 inches) and is machine washable for easy care. Ideal for outdoor enthusiasts seeking versatile, stylish protection across seasons.

Specifications

ASIN	B07F98MTBM
ASIN	B00FLRIYM8
Additional Features	Lightweight
Age Range Description	Adult
Apparel Closure Type	Pull-On
Apparel Fabric Stretch	No Stretch
Apparel Fabric Weight Class	Lightweight
Best Sellers Rank	#8,943 in Clothing, Shoes & Jewelry ( See Top 100 in Clothing, Shoes & Jewelry ) #1,883 in Men's Fashion
Brand Name	Minus33 Merino Wool
Color	High Visibility
Customer Reviews	4.6 4.6 out of 5 stars (9,087)
Date First Available	October 3, 2013
Department	mens
Fabric Type	100% Merino Wool
Fit to Size Sentiment	Positive
Hat Form Type	Beanie
Import Designation	Imported
Is Waterproof	False
Item Dimensions	5 x 4 x 0.5 inches
Item model number	3580
Manufacturer	Minus33 Merino Wool
Manufacturer Part Number	3580HV
Material Type	Wool
Number of Items	1
Occasion Type	summer
Package Dimensions	1 x 1 x 1 inches; 1 pounds
Pattern	Solid
Pattern Style	Solid
Product Care Instructions	Machine Wash
Recommended Uses For Product	Outdoor
Seasons	Winter
Sleeve Length Description	Sleeveless
Sport Type	Hunting
Style Name	Cuff Beanie
Style Number	3580HV
Sun Protection	5E+1 sun_protection_factor
UPC	819877020949
Unit Count	1 Count
Water Resistance Level	Water Repellent

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¥6422

Duties & taxes included

In stock

Sold byAmazon JapanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Japan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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100% Merino Wool Cuff Beanie - Warm Winter Hat - Novelty Beanie - Toque

Description

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Common Questions