Alteration Sierra Vest (Unisex) - Graphite Gray

Alteration Sierra Vest (Unisex)

Graphite Gray / XS
$343.20
Skip to product information
Alteration Sierra Vest (Unisex) - Graphite Gray

Alteration Sierra Vest (Unisex)

4 reviews

$343.20
Shipping calculated at checkout.
Style
Size

This lightweight down vest provides a high baffle feel while maintaining a calm tone, making it visually striking. The outer material is made from recycled taslan nylon with a water-repellent finish, offering a light and natural texture. The matte-finished fabric features puckering to reduce sportiness, resulting in a design that fits seamlessly into urban life. It utilizes recycled down in part of the insulation to achieve warmth and lightness. The lining uses GORE-TEX WINDSTOPPER with a two-layer structure to minimize wind intrusion. The same-color logo embroidery is placed at the collar and back shoulder. Designed with a generous width for ease of layering and removal, it combines design aesthetics that shine in contemporary town styles with functionality, making it suitable for a wide range of ages.

Size Chart
 LengthWidthShoulder Width
XS635841
S656043
M676244
L696446
XL716648
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

Zippered pockets on both sides
1/3

Zippered pockets on both sides

Drawcord hem specification
2/3

Drawcord hem specification

Zippered pocket on the inside
3/3

Zippered pocket on the inside

Looks

Alteration Sierra Vest (Unisex)
1/1

158cm / XS size

Reviews

Dec 26, 2025

Light and warm

The design is simple, lightweight, and very warm. I struggled between the Nuptse Vest and the Camp Sierra, but I chose this one because it was the most functional. It's stylish.

Tetsuya
Age: 60s
Usage Scene: Lifestyle
Gender: Male
Fit: Just right
Height: 161-165cm
Size: S
Weight: 51-55kg
Color: K
Dec 23, 2025

Rough

I really like the subtly matching logo. It feels good to wear.

KAI
Age: 50s
Usage Scene: Lifestyle
Gender: Female
Fit: Just right
Height: 151-155cm
Size: S
Weight: -
Color: K

Materials & Technologies

WINDSTOPPER by GORE-TEX LABS
1/5

WINDSTOPPER by GORE-TEX LABS

A material that prioritizes comfort with excellent windproof performance, smoothness, and flexibility. Suitable for various items from mountain wear to town use. *It is not waterproof as a product.

CLEANDOWN
2/5

CLEANDOWN

CLEANDOWN uses raw down processed for cleaning by Kawada Feather, a down processing manufacturer headquartered in Meiwa-cho, Mie Prefecture. The down is thoroughly cleaned of dirt and dust without damaging it, using soft water from the area and a dry climate that allows the feathers to open easily, resulting in clean down. The clean down has better bulkiness and improved thermal insulation compared to the pre-cleaned down. Clean down wraps around the body more warmly.

NORTH TECH CLOTH
3/5

NORTH TECH CLOTH

Although it is a synthetic fiber, it features a texture similar to cotton. It is lightweight and excellent in compactness.

Water Resistant
4/5

Water Resistant

Water-repellent function

GREEN DOWN RECYCLE PROJECT
5/5

GREEN DOWN RECYCLE PROJECT

The GREEN DOWN RECYCLE PROJECT is an initiative to collect and refine down (feathers), a limited resource, and use it as a raw material for new products including down wear under the name 'GREENDOWN'. It can reduce the carbon dioxide generated when down is incinerated (approximately 1.8 kg of carbon dioxide is emitted for 1 kg of down) and the carbon dioxide produced when transported from the country of origin to Japan.

Shop The Full Collection

1995 Casentino Wool Denali Jacket (Unisex)

1995 Casentino Wool Denali Jacket (Unisex)

200 Micro Jacket (Kids)

200 Micro Jacket (Kids)

3/4 Graphics Sleeve Tee (Unisex)

3/4 Graphics Sleeve Tee (Unisex)