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Product Description
Yamato Michi Chemical B Sleeveless (Men's)
■Excerpt from the manufacturer's description
The Chemical B series from Yama to Michi comes in wide, standard, and slim fits; the Chemical B Sleeveless is a slim fit.
*Important Notice*
■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 the off-white version is slightly lower than that of other colors, its antimicrobial performance tends to be relatively higher.
Due to the fabric's natural mottled texture, the same color may appear slightly different in shade.
■ 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—adhered to the fabric, causing a particularly noticeable sensation. 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 level of sweat is high after sweating
・If alkaline detergents or chemicals remain
・When acidic odor-causing compounds (e.g., butyric acid, isovaleric acid, and other substances derived from skin flora, commonly referred to as body odor) 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 pinholes may become visible if you pull on the sewn areas.
It is safe for normal use and wear, but please avoid pulling on it too hard.
■ Odor-free, moisture-wicking synthetic base layer
The "Chemical B" base layer series, developed in collaboration with Teijin Frontier, eliminates the problems of "chills from sweat" and "odor"—the traditional weaknesses of synthetic base layers.
It quickly wicks away sweat and dries quickly; its fabric structure, which makes point-to-point contact with the skin, helps prevent chills caused by sweat, while the mildly acidic yarn inhibits bacterial growth to prevent unpleasant odors. The result is a base layer that perfectly combines the best features of synthetic fibers and merino wool.
With a slim fit that enhances moisture-wicking performance and a comfortable, breathable feel against the skin, this base layer is designed for active mountain travelers—especially those who have previously avoided synthetic fabrics.
・Excellent moisture-wicking properties keep you comfortable even during prolonged, high-intensity activity
・Although it is a synthetic fiber, it offers excellent odor-preventing and odor-eliminating properties, and the effects last
・Lighter than merino wool
・Made from a lightweight mesh fabric, yet durable and resistant to pilling
■Details of Each Part
・The neckline is cut wide to allow for easy ventilation, and it features a double-stitched seam using the same fabric as the body for a clean, streamlined look.
・A small brand tag—the smallest in the Yama to Michi collection—is placed at the hem of the back panel so as not to detract from the simple design.
■Material: 100% polyester, 100 g/m²
■Weight
・67 g (Size S)
・70 g (Size M)
・78 g (Size L)
・85 g (Size XL)
■Product Dimensions
[S] Length: 65, Shoulder width: 37, Body width: 46.5, Hem width: 45.5
[M] Length: 68, Shoulder width: 39, Body width: 49, Hem width: 48
[L] Length: 70, Shoulder width: 42, Body width: 53, Hem width: 52
[XL] Length: 72, Shoulder width: 45, Body width: 57, Hem width: 56
*Please note that actual measurements may differ from those listed due to fabric stretch or sewing tolerances.
*Please note that the degree of shrinkage or stretching after washing may vary from item to item and may also depend on the type of washing machine and the cycle settings used.
*From the manufacturer's website
■Product Care
・Wash using a mild detergent in water no hotter than 40°C.
・Please hang to dry in the shade.
・Do not use a dryer or iron, as heat will weaken 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 the images shown are provided by the manufacturer, so the actual product may differ slightly in terms of specifications (such as logo placement, color, or pattern placement).
■Excerpt from the manufacturer's description
The Chemical B series from Yama to Michi comes in wide, standard, and slim fits; the Chemical B Sleeveless is a slim fit.
*Important Notice*
■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 the off-white version is slightly lower than that of other colors, its antimicrobial performance tends to be relatively higher.
Due to the fabric's natural mottled texture, the same color may appear slightly different in shade.
■ 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—adhered to the fabric, causing a particularly noticeable sensation. 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 level of sweat is high after sweating
・If alkaline detergents or chemicals remain
・When acidic odor-causing compounds (e.g., butyric acid, isovaleric acid, and other substances derived from skin flora, commonly referred to as body odor) 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 pinholes may become visible if you pull on the sewn areas.
It is safe for normal use and wear, but please avoid pulling on it too hard.
■ Odor-free, moisture-wicking synthetic base layer
The "Chemical B" base layer series, developed in collaboration with Teijin Frontier, eliminates the problems of "chills from sweat" and "odor"—the traditional weaknesses of synthetic base layers.
It quickly wicks away sweat and dries quickly; its fabric structure, which makes point-to-point contact with the skin, helps prevent chills caused by sweat, while the mildly acidic yarn inhibits bacterial growth to prevent unpleasant odors. The result is a base layer that perfectly combines the best features of synthetic fibers and merino wool.
With a slim fit that enhances moisture-wicking performance and a comfortable, breathable feel against the skin, this base layer is designed for active mountain travelers—especially those who have previously avoided synthetic fabrics.
・Excellent moisture-wicking properties keep you comfortable even during prolonged, high-intensity activity
・Although it is a synthetic fiber, it offers excellent odor-preventing and odor-eliminating properties, and the effects last
・Lighter than merino wool
・Made from a lightweight mesh fabric, yet durable and resistant to pilling
■Details of Each Part
・The neckline is cut wide to allow for easy ventilation, and it features a double-stitched seam using the same fabric as the body for a clean, streamlined look.
・A small brand tag—the smallest in the Yama to Michi collection—is placed at the hem of the back panel so as not to detract from the simple design.
■Material: 100% polyester, 100 g/m²
■Weight
・67 g (Size S)
・70 g (Size M)
・78 g (Size L)
・85 g (Size XL)
■Product Dimensions
[S] Length: 65, Shoulder width: 37, Body width: 46.5, Hem width: 45.5
[M] Length: 68, Shoulder width: 39, Body width: 49, Hem width: 48
[L] Length: 70, Shoulder width: 42, Body width: 53, Hem width: 52
[XL] Length: 72, Shoulder width: 45, Body width: 57, Hem width: 56
*Please note that actual measurements may differ from those listed due to fabric stretch or sewing tolerances.
*Please note that the degree of shrinkage or stretching after washing may vary from item to item and may also depend on the type of washing machine and the cycle settings used.
*From the manufacturer's website
■Product Care
・Wash using a mild detergent in water no hotter than 40°C.
・Please hang to dry in the shade.
・Do not use a dryer or iron, as heat will weaken 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 the images shown are provided by the manufacturer, so the actual product may differ slightly in terms of specifications (such as logo placement, color, or pattern placement).
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Cancellations, Returns, and Exchanges
Before Placing Your Order
As a general rule, we do not accept returns or exchanges of merchandise for reasons related to the customer’s preferences, such as “it didn’t look like I expected” or “the size doesn’t fit.” If you have any questions or concerns, please consult with our staff first.
Please place your order after understanding and agreeing to the following points.
・Depending on the device or environment you are using, the color and texture of the product may appear slightly different.
・There may be slight variations in the dimensions listed in the product description.
・Minor scratches or scuffs may occur unavoidably during the manufacturing process.
・Depending on the material of the product, there may be variations in color, texture, or pattern from item to item.
Order Cancellation
As a general rule, we do not accept cancellations after a shipping confirmation email has been sent.
We make every effort to manage our inventory, but if we are unable to secure the items you ordered for unavoidable reasons, we may have to cancel your order.
Purchase Limit
We may impose purchase limits on certain products. Orders placed from multiple accounts believed to belong to the same person, or orders suspected of using bots, may be canceled or the quantity reduced.
*Please note that we assume no liability for any losses, damages, or other adverse consequences resulting from a cancellation.
Returns and Exchanges
While we take the utmost care to ensure the quality of our products and their packaging, in the unlikely event that an item arrives damaged or soiled, or if you receive an item that differs from your order, please contact us via the “Contact Form ” within 7 days of the delivery date. We will cover all associated costs.
・If a replacement item is available, we will replace the item.
・If we are unable to secure a replacement, we will issue a refund.
Please note that we cannot accept returns or exchanges if any of the following conditions apply. We appreciate your understanding.
・If more than 8 days have passed since the product was delivered
・When we determine that the customer has finished using the product
・If the item has been altered, washed, or dry-cleaned
・If any accessories (product tags, warranty cards, bags, boxes, etc.) are lost or damaged
・If odors, scratches, or stains occur while the item is in the customer's possession
・Items that come into direct contact with the skin, such as underwear, socks, and accessories, as well as perfumes and cosmetics, etc.
・If the item is returned without prior notice
About the Listed Prices
We take every precaution to ensure that the product information displayed on this site is accurate. However, in the unlikely event that we discover after payment has been processed that a product’s price was incorrectly displayed on the site, we will contact you and either adjust the price to the correct amount and process the payment, or cancel your order.
Important Notes
*Please note that inventory for this item is shared across our physical stores and other shopping sites operated by our company. We check inventory after receiving your order, so the item may be out of stock in some cases. We apologize for any inconvenience this may cause and will notify you via email if this occurs. Thank you for your understanding.
