1/4
Zipper pockets on both sides
Alteration Sierra Jacket (Unisex)
Graphite Gray / S
$431.20
Skip to product information
Alteration Sierra Jacket (Unisex)
$431.20
Shipping calculated at checkout.
This lightweight down jacket boasts a high baffle design and a calming tone that leaves a lasting impression. Crafted with water-repellent recycled Tussar nylon, it features a soft, natural texture. The matte-finish fabric utilizes puckering to reduce the sporty look, creating a design that seamlessly fits urban living. Part of the lining is filled with recycled down, focusing on warmth and lightness. The inner lining employs a GORE-TEX WINDSTOPPER two-layer structure to minimize wind penetration. A logo embroidery in the same color is placed at the collar and back shoulder. Thoughtfully designed for comfort, the body and sleeves are intentionally spacious for easy layering and removal. This item combines a stylish design that complements current town styles with functionality, making it suitable for a wide range of ages.
Size Chart
| Length | Width | Shoulder width | Sleeve length | |
|---|---|---|---|---|
| XS | 68 | 58 | 55 | 59 |
| S | 70 | 60 | 57 | 61 |
| M | 72 | 62 | 59 | 63 |
| L | 74 | 64 | 61 | 65 |
| XL | 76 | 66 | 63 | 67 |
Shipping Policies
Shipping Area
Products are shipped directly from Japan and are currently available for delivery to the United States only via EMS.
Orders with delivery addresses outside the United States will be cancelled. Thank you for your understanding.
Delivery Time
- Processing time: 5–10 business days
- Shipping time: 7–14 business days
Delivery may be delayed due to customs inspections, natural disasters, or postal strikes.
Shipping Costs
Shipping fees vary by destination and will be displayed at checkout.
Order Tracking
Your tracking number will be included in the dispatch confirmation email.
For U.S. customers, track your order here:
https://tools.usps.com/go/TrackConfirmAction_input
Taxes
Buyers are responsible for all applicable local, state, federal, and international taxes, including any sales or import taxes related to their order.
Duties and taxes are not prepaid and may be charged by customs upon delivery.
We are unable to declare a lower value or mark orders as gifts on customs forms.
Refund Policies
Returns & Exchanges
Returns are not accepted for overseas orders due to customer preferences, including incorrect sizing or personal interpretation of the product.
An exchange or refund will be offered only if the item received is incorrect or has a defect caused by us.
Please contact us within 3 days of delivery, including your order number and a description of the issue. Approved cases will have return shipping covered by us.
Requests for defective item exchanges must be submitted within 5 days of delivery based on the tracking record. Returns will not be accepted without prior email approval.
We Cannot Accept Returns or Exchanges If:
- The request is due to personal reasons
- Import duties or taxes are refused
- More than 3 days have passed since delivery
- The item has been worn, used, or washed
- The item has odors, stains, or damage caused by use
- Original accessories, packaging, or boxes are missing
- The item has been altered or repaired
- The item was purchased as a sale or discounted product
Features
2/4
Equipped with a zipper pocket on the inside
3/4
Same color logo embroidery placed on the collar and back shoulder
4/4
Water-repellent processing applied to the outer fabric
Looks
1/20
152cm / ONE SIZE size
2/20
152cm / XS size
3/20
155cm / ONE SIZE size
4/20
162cm / ONE SIZE size
5/20
163cm / ONE SIZE size
6/20
163cm / XS size
7/20
163cm / XS size
8/20
163cm / XS size
9/20
165cm / XS size
10/20
166cm / XS size
11/20
168cm / M size
12/20
168cm / M size
13/20
170cm / M size
14/20
170cm / M size
15/20
174cm / M size
16/20
175cm / XL size
17/20
177cm / L size
18/20
178cm / XL size
19/20
178cm / L size
20/20
179cm / L size
Reviews
Adult down
This is a light and warm down jacket that can be easily worn. It uses GORE-TEX WINDSTOPPER, providing water resistance, wind resistance, and breathability, making it convenient for town use. The button design is also 💯.
Yoshi
In a different color
I purchased it. I bought one last year too, but this year I bought it in black in a different color.
The Nuptse is a bit too standard, so I wanted an alternation!
The logo is the same color, and it's warm and has a simple, cute appearance.
Yuu-chan
Materials & Technologies
1/7
WINDSTOPPER by GORE-TEX LABS
A material that prioritizes comfort, combining excellent windproof properties with smoothness and flexibility. Suitable for various items from mountain wear to town use. *This product is not waterproof.
2/7
CLEANDOWN
CLEANDOWN uses down that has been cleaned and processed by Kawada Feather, a down processing manufacturer based in Meiwa-cho, Mie Prefecture, as its main raw material. This clean down is produced using a dry climate that allows the feathers to open easily and soft water from the area to thoroughly remove dirt and dust without damaging the down. The cleaned down has superior loft compared to uncleaned down, enhancing its insulation ability. Clean down wraps the body more warmly.
3/7
NORTH TECH CLOTH
Despite being a synthetic fiber, it features a texture similar to cotton. Lightweight and excellent in compactness.
4/7
Water Resistant
'Water Repellent Function'
5/7
Windproof
'Windproof Function'
6/7
GREEN CYCLE
Collecting products after use and recycling them into new products.
7/7
GREEN DOWN RECYCLE PROJECT
The GREEN DOWN RECYCLE PROJECT is a project that collects and refines down (feathers), a limited resource, to be used as raw material for new products such as down clothing under the name 'GREENDOWN'. It helps reduce carbon dioxide emissions generated when burning down (about 1.8 kg of carbon dioxide is emitted per 1 kg of down) and during transport from the country of origin to Japan.
