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Yamatomichi Chemical B French Sleeve (Women's)
■Excerpt from the manufacturer's description
The Chemical B series from Yama to Michi comes in Wide Fit, Standard Fit, and Slim Fit; the Chemical B French Sleeve is a Standard Fit.
*Precautions for Use*
■Differences in Characteristics Based on Color
・Due to differences in dye concentration, there are variations in the functional properties achieved through processing; while the fabric strength of Off White is slightly lower than that of other colors, its antimicrobial performance tends to be relatively higher.
・Due to the fabric's unique mottled texture, colors may appear slightly different even within the same color line.
■ About Odor Absorption
There have been reports of people noticing odors, such as body odor, when wearing items previously worn by others. It is possible that the body odor of someone else—to which the wearer is not accustomed—became absorbed into the fabric, causing a particularly noticeable sensation of discomfort. There have also been reports of people noticing the smell of algae after wading in rivers or streams.
In the following situations, Chemical B may not be able to fully demonstrate its antibacterial, deodorizing, and odor-eliminating properties.
・When sebum builds up excessively
・When the pH of sweat is high after sweating
・If alkaline detergents or chemicals remain on the surface
・When acidic odor-causing compounds (e.g., butyric acid, isovaleric acid, etc.—so-called body odor derived from skin flora) increase due to factors such as leaving wet clothes unattended
■Regarding Stitch Marks at Seam Lines
Due to the nature of the fabric, stitch marks tend to remain after sewing, and small holes from the stitches may become visible if you pull on the sewn areas. While this does not affect normal use or wear, please avoid pulling on the fabric too hard.
■Stays Warm, Odor-Free, Standard Fit
The "Chemical B" base layer series, developed in collaboration with Teijin Frontier, eliminates the problems of "chills from sweat" and "odor"—which have traditionally been the weaknesses of synthetic fiber base layers.
It quickly wicks away sweat and dries, and its fabric structure—which makes point-to-point contact with the skin—helps prevent chills caused by sweat. Furthermore, the mildly acidic yarn inhibits bacterial growth, preventing unpleasant odors. It is truly the perfect base layer, combining the best features of synthetic fibers and merino wool.
In particular, the Chemical B French Sleeves—featuring a pattern designed to naturally conform to a woman’s body—are the perfect base layer for active mountain adventures, and we especially recommend them to those who have traditionally avoided synthetic fabrics.
・Excellent at wicking away sweat, keeping you comfortable even during prolonged, high-intensity activities
・Although it is a synthetic fiber, it offers excellent odor-preventing and deodorizing properties, and the effects last a long time.
・Lighter than merino wool
・Although made of a lightweight mesh fabric, it is durable and resistant to pilling
■Details of Each Part
・The neckline is double-stitched using the same fabric as the body, creating a clean, streamlined look. The sleeves are short French sleeves.
・The neck area is reinforced with tape running from both shoulders to the back of the neck.
■Material: 100% polyester, 100 g/m²
■Weight
・71 g (Size S)
・78 g (Size M)
・83 g (Size L)
■Product Dimensions (cm)
[ S ] Length: 61.5, Shoulder width: 37, Body width: 46, Waist: 44, Hem width: 45, Sleeve length: 13, Cuff width: 16
[ M ] Length: 63.5, Shoulder width: 38.5, Chest width: 49, Waist: 47, Hem width: 48, Sleeve length: 13.5, Cuff width: 16.5
[ L ] Length: 65.5, Shoulder width: 40, Chest width: 52, Waist: 50, Hem width: 51, Sleeve length: 14, Cuff width: 17
*From the manufacturer's website*
*Please note that actual measurements may differ from those listed due to fabric stretch, sewing tolerances, and other factors.
*Please note that the amount of shrinkage or stretching caused by washing may vary from item to item and may also depend on factors such as the type of washing machine and the wash cycle settings.
■Product Care
・When washing, use a neutral detergent and wash in water no hotter than 40°C.
・Please hang the item to dry in the shade.
・Do not use a dryer or iron, as heat weakens the antibacterial and odor-resistant properties.
・To maintain the fabric's antibacterial and odor-resistant properties, please avoid dry cleaning, fabric softeners, and bleach.
*Please note that since we are using images provided by the manufacturer, the actual product may differ slightly in terms of specifications (such as logo placement, color, or pattern placement).
【Women】W's Chemical B French Sleeve #Brown Sugar
¥7,000 JPY
Regular price
Sale price
¥7,000 JPY
August 24, 2026 at 9:00 pm Commencement of sales
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Product Description.
■Excerpt from the manufacturer's description
The Chemical B series from Yama to Michi comes in Wide Fit, Standard Fit, and Slim Fit; the Chemical B French Sleeve is a Standard Fit.
*Precautions for Use*
■Differences in Characteristics Based on Color
・Due to differences in dye concentration, there are variations in the functional properties achieved through processing; while the fabric strength of Off White is slightly lower than that of other colors, its antimicrobial performance tends to be relatively higher.
・Due to the fabric's unique mottled texture, colors may appear slightly different even within the same color line.
■ About Odor Absorption
There have been reports of people noticing odors, such as body odor, when wearing items previously worn by others. It is possible that the body odor of someone else—to which the wearer is not accustomed—became absorbed into the fabric, causing a particularly noticeable sensation of discomfort. There have also been reports of people noticing the smell of algae after wading in rivers or streams.
In the following situations, Chemical B may not be able to fully demonstrate its antibacterial, deodorizing, and odor-eliminating properties.
・When sebum builds up excessively
・When the pH of sweat is high after sweating
・If alkaline detergents or chemicals remain on the surface
・When acidic odor-causing compounds (e.g., butyric acid, isovaleric acid, etc.—so-called body odor derived from skin flora) increase due to factors such as leaving wet clothes unattended
■Regarding Stitch Marks at Seam Lines
Due to the nature of the fabric, stitch marks tend to remain after sewing, and small holes from the stitches may become visible if you pull on the sewn areas. While this does not affect normal use or wear, please avoid pulling on the fabric too hard.
■Stays Warm, Odor-Free, Standard Fit
The "Chemical B" base layer series, developed in collaboration with Teijin Frontier, eliminates the problems of "chills from sweat" and "odor"—which have traditionally been the weaknesses of synthetic fiber base layers.
It quickly wicks away sweat and dries, and its fabric structure—which makes point-to-point contact with the skin—helps prevent chills caused by sweat. Furthermore, the mildly acidic yarn inhibits bacterial growth, preventing unpleasant odors. It is truly the perfect base layer, combining the best features of synthetic fibers and merino wool.
In particular, the Chemical B French Sleeves—featuring a pattern designed to naturally conform to a woman’s body—are the perfect base layer for active mountain adventures, and we especially recommend them to those who have traditionally avoided synthetic fabrics.
・Excellent at wicking away sweat, keeping you comfortable even during prolonged, high-intensity activities
・Although it is a synthetic fiber, it offers excellent odor-preventing and deodorizing properties, and the effects last a long time.
・Lighter than merino wool
・Although made of a lightweight mesh fabric, it is durable and resistant to pilling
■Details of Each Part
・The neckline is double-stitched using the same fabric as the body, creating a clean, streamlined look. The sleeves are short French sleeves.
・The neck area is reinforced with tape running from both shoulders to the back of the neck.
■Material: 100% polyester, 100 g/m²
■Weight
・71 g (Size S)
・78 g (Size M)
・83 g (Size L)
■Product Dimensions (cm)
[ S ] Length: 61.5, Shoulder width: 37, Body width: 46, Waist: 44, Hem width: 45, Sleeve length: 13, Cuff width: 16
[ M ] Length: 63.5, Shoulder width: 38.5, Chest width: 49, Waist: 47, Hem width: 48, Sleeve length: 13.5, Cuff width: 16.5
[ L ] Length: 65.5, Shoulder width: 40, Chest width: 52, Waist: 50, Hem width: 51, Sleeve length: 14, Cuff width: 17
*From the manufacturer's website*
*Please note that actual measurements may differ from those listed due to fabric stretch, sewing tolerances, and other factors.
*Please note that the amount of shrinkage or stretching caused by washing may vary from item to item and may also depend on factors such as the type of washing machine and the wash cycle settings.
■Product Care
・When washing, use a neutral detergent and wash in water no hotter than 40°C.
・Please hang the item to dry in the shade.
・Do not use a dryer or iron, as heat weakens the antibacterial and odor-resistant properties.
・To maintain the fabric's antibacterial and odor-resistant properties, please avoid dry cleaning, fabric softeners, and bleach.
*Please note that since we are using images provided by the manufacturer, the actual product may differ slightly in terms of specifications (such as logo placement, color, or pattern placement).
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Cancellation, returns and exchanges
Before ordering
As a rule, we do not accept returns or exchanges of products for reasons attributable to the customer, such as "it's not what I imagined" or "the size doesn't fit." If you have any questions or concerns, please consult our staff first.
Please understand and accept the following points before ordering.
The colour and texture of the products may appear slightly different depending on the device and environment used.
The dimensions given in the product description may have slight deviations.
The product may have minor scratches and scuffs that are unavoidable during the manufacturing process.
Depending on the material of the product, there may be individual differences in colour irregularities, texture and pattern.
Cancellation of orders
As a rule, cancellations after the dispatch completion email has been sent are not accepted.
Although we make every effort to manage our stock, we reserve the right to cancel an order if we are unable to keep the ordered product in stock for an unavoidable reason.
Limit on number of purchases
The number of purchases may be limited for some products. Orders from multiple accounts that appear to be from the same person, or orders that appear to be using a BOT, may be cancelled or reduced in quantity.
*The Company does not guarantee or bear any responsibility for any loss or disadvantage caused by the cancellation.
Returns and exchanges
However, in the unlikely event that the product is damaged or defaced, or if you receive an item that is different from your order, please contact us within 7 days of the delivery date. We will take action at our expense.
If a replacement can be secured, the product will be replaced.
If a replacement cannot be secured, a refund will be made.
Returns and exchanges will not be accepted if any of the following conditions apply. Please note in advance
If more than 8 days have elapsed since the arrival of the goods
When the customer is deemed to have used the product by our company.
If the product has been repaired, washed or cleaned.
Loss or damage to accessories (product tag, warranty card, bag, box, etc.)
If smells, scratches or stains occur under the customer's care.
Products that come into contact with the skin, such as underwear, socks and accessories, perfumes and cosmetics.
If you return the goods without informing us in advance.
About the indicated prices
Every care is taken to ensure that correct product information is displayed on the website, but in the unlikely event that it is discovered after payment has been made that the price of a product was incorrectly displayed on the website, the customer will be contacted and the correct price will be corrected before payment is made or the order is cancelled.
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This product is sold by sharing stock with the actual shop and other shopping sites operated by our company. Stock will be checked after the order is received, and there is a possibility that the product may be out of stock in some cases. In such cases, we will inform you by e-mail.
