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Product Description
Yamato Michi Active Pullover (Unisex)
■Manufacturer Description Quote
On any mountain, in any season
The goal was to create a thin, lightweight fleece that can be worn continuously across a wide range of temperatures and environments.
The Active Pullover is an active insulation layer designed to strike the perfect balance between breathability and warmth, making it ideal as a base layer.
PrimaLoft Active (100g/m²) wicks sweat away from the fabric without overheating during activity, maintaining a comfortable feel.
With its soft feel and stretch, it's so breathable it feels chilly when the wind blows through it. Yet, throw on a layer and it instantly warms you up. Weighing just 148g (Size M), it practically disappears in your backpack.
Depending on the situation or activity, you can wear it directly against your skin as a base layer, or layer it over merino wool or similar fabrics.
All year round, in every situation, it will surely become your new mountain companion.
■Features of Active Sweaters
・PrimaLoft Active (100g/m²) used
・High versatility for continuous use across a wide temperature range
・Prevents overheating while serving as a functional garment
・Stretchability that doesn't restrict movement
・Even when wet, it retains moisture poorly, allowing for worry-free use during rainy weather activities
・Excellent quick-drying properties that rapidly disperse sweat
・Lightweight and highly portable, also serves as a spare insulated outer layer
・Open the zipper all the way to the chest for ventilation
・High neck for warmth up to the neckline
・Thumb hole for improved wrist warmth
■Comparison of Active Insulation by Mountain and Trail
*Numbers indicate the breathability of the outer fabric (JIS 1096 L method).
・Layer: Mid-layer (can also be worn as a base layer)
・Wind resistance: ×
・Breathability: 296* (Highly breathable)
・Thermal insulation: ○
・Features: Designed as a versatile base layer for year-round use across diverse activities, it excels not only on its own but also when layered with various garments.
■Materials
・Primaloft Active 100/m2 (Recycled Polyester58％)
※OEKO-TEX Certification Fabric
■Contrast Fabric
・Shadow Rip (100% Polyester) 56g/m2
・C0 DWR (PFAS Free)
■Weight
124g (Size XS)
136g (Size S)
148g (Size M)
166g (Size L)
176g (Size XL)
■Size (cm)
[XS] Length: 68, Body width: 95, Hem width: 87, Sleeve length: 76.5, Cuff width: 8, Zipper length: 32
Length: 71.5 cm, Body width: 101 cm, Hem width: 93 cm, Sleeve length: 82.5 cm, Cuff width: 8.5 cm, Zipper length: 33 cm
[M]Length: 74.5, Body width: 106, Hem width: 98, Sleeve length: 85, Cuff width: 9, Zipper length: 34
[L]Length: 76.5 cm, Body width: 114 cm, Hem width: 106 cm, Sleeve length: 88 cm, Cuff width: 9.5 cm, Zipper length: 35 cm
[XL] Length: 78.5, Body width: 122, Hem width: 114, Sleeve length: 91, Cuff width: 10, Zipper length: 36
※From the manufacturer's website
※Actual measurements may differ from those listed due to fabric stretch, sewing variations, or other factors.
※Fabric shrinkage may occur due to wear and washing, so dimensions may change over time.
■Recommended Size
[XS] Weight: 42–53 kg, Bust: 78–84 cm
[S] Weight: 51–61 kg, Chest: 80–88 cm
[M] Weight: 59–69 kg, Chest: 84–95 cm
[L] Weight: 67–78 kg, Chest circumference: 92–102 cm
[XL] Weight: 76–85 kg, Chest: 100–110 cm
※From the manufacturer's website
■Product Care
・Wash using a neutral detergent at a water temperature of 40°C or below.
・Do not use fabric softener or bleach.
・Dry in the shade by hanging.
・Use the dryer on a low-temperature setting (maximum 60°C).
・Do not iron.
・Due to the nature of the material, pilling may occur with wear, and slight shrinkage may occur with washing.
■Regarding Hair Loss
※Initial shedding of fibers is significant upon purchase. While repeated washing will reduce shedding, due to the material's characteristics, the fabric will gradually thin with wear and washing.
※Please note that manufacturer images are used, so specifications (such as logo placement, color, and pattern positioning) may differ slightly from the actual product.
■Manufacturer Description Quote
On any mountain, in any season
The goal was to create a thin, lightweight fleece that can be worn continuously across a wide range of temperatures and environments.
The Active Pullover is an active insulation layer designed to strike the perfect balance between breathability and warmth, making it ideal as a base layer.
PrimaLoft Active (100g/m²) wicks sweat away from the fabric without overheating during activity, maintaining a comfortable feel.
With its soft feel and stretch, it's so breathable it feels chilly when the wind blows through it. Yet, throw on a layer and it instantly warms you up. Weighing just 148g (Size M), it practically disappears in your backpack.
Depending on the situation or activity, you can wear it directly against your skin as a base layer, or layer it over merino wool or similar fabrics.
All year round, in every situation, it will surely become your new mountain companion.
■Features of Active Sweaters
・PrimaLoft Active (100g/m²) used
・High versatility for continuous use across a wide temperature range
・Prevents overheating while serving as a functional garment
・Stretchability that doesn't restrict movement
・Even when wet, it retains moisture poorly, allowing for worry-free use during rainy weather activities
・Excellent quick-drying properties that rapidly disperse sweat
・Lightweight and highly portable, also serves as a spare insulated outer layer
・Open the zipper all the way to the chest for ventilation
・High neck for warmth up to the neckline
・Thumb hole for improved wrist warmth
■Comparison of Active Insulation by Mountain and Trail
*Numbers indicate the breathability of the outer fabric (JIS 1096 L method).
・Layer: Mid-layer (can also be worn as a base layer)
・Wind resistance: ×
・Breathability: 296* (Highly breathable)
・Thermal insulation: ○
・Features: Designed as a versatile base layer for year-round use across diverse activities, it excels not only on its own but also when layered with various garments.
■Materials
・Primaloft Active 100/m2 (Recycled Polyester58％)
※OEKO-TEX Certification Fabric
■Contrast Fabric
・Shadow Rip (100% Polyester) 56g/m2
・C0 DWR (PFAS Free)
■Weight
124g (Size XS)
136g (Size S)
148g (Size M)
166g (Size L)
176g (Size XL)
■Size (cm)
[XS] Length: 68, Body width: 95, Hem width: 87, Sleeve length: 76.5, Cuff width: 8, Zipper length: 32
Length: 71.5 cm, Body width: 101 cm, Hem width: 93 cm, Sleeve length: 82.5 cm, Cuff width: 8.5 cm, Zipper length: 33 cm
[M]Length: 74.5, Body width: 106, Hem width: 98, Sleeve length: 85, Cuff width: 9, Zipper length: 34
[L]Length: 76.5 cm, Body width: 114 cm, Hem width: 106 cm, Sleeve length: 88 cm, Cuff width: 9.5 cm, Zipper length: 35 cm
[XL] Length: 78.5, Body width: 122, Hem width: 114, Sleeve length: 91, Cuff width: 10, Zipper length: 36
※From the manufacturer's website
※Actual measurements may differ from those listed due to fabric stretch, sewing variations, or other factors.
※Fabric shrinkage may occur due to wear and washing, so dimensions may change over time.
■Recommended Size
[XS] Weight: 42–53 kg, Bust: 78–84 cm
[S] Weight: 51–61 kg, Chest: 80–88 cm
[M] Weight: 59–69 kg, Chest: 84–95 cm
[L] Weight: 67–78 kg, Chest circumference: 92–102 cm
[XL] Weight: 76–85 kg, Chest: 100–110 cm
※From the manufacturer's website
■Product Care
・Wash using a neutral detergent at a water temperature of 40°C or below.
・Do not use fabric softener or bleach.
・Dry in the shade by hanging.
・Use the dryer on a low-temperature setting (maximum 60°C).
・Do not iron.
・Due to the nature of the material, pilling may occur with wear, and slight shrinkage may occur with washing.
■Regarding Hair Loss
※Initial shedding of fibers is significant upon purchase. While repeated washing will reduce shedding, due to the material's characteristics, the fabric will gradually thin with wear and washing.
※Please note that manufacturer images are used, so specifications (such as logo placement, color, and pattern positioning) may differ slightly from the actual product.
Available Payment Methods
Credit Card Payment
Convenience Store Payment
Digital Wallets and QR Code Payments
Bank Transfer
Japan Post Bank
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.
