Rio Optimum Sweatshirt (C3fit / Women's) - Ink Black

Rio Optimum Sweatshirt (C3fit / Women's)

Ink Black / 3
$176.00
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Rio Optimum Sweatshirt (C3fit / Women's) - Ink Black

Rio Optimum Sweatshirt (C3fit / Women's)

8 reviews

$176.00
Shipping calculated at checkout.
Style
Size

The Re-Optimum series, developed using photonic technology, is designed for recovery and is favored by top athletes across various sports. This collection features the unique ability of photonics to generate sustained warmth from the body's own temperature (far infrared radiation emitted by the human body). It can maintain warmth close to body temperature, essential for a relaxed and comfortable experience. The sweatshirts in this fleece series are crafted from soft pile fabric, balancing functionality and comfort. The surface is made from organic extra-long cotton, providing a smooth feel and a clean appearance. The skin-facing side incorporates photonic technology along with Maxifresh for odor reduction, minimizing unpleasant smells caused by sweat. The fleece section is finished with a special twisted yarn for a fluffy, soft texture. The pattern design aims for a relaxed feel that gently wraps around the body. It features a moderately loose silhouette with easy-moving pivot sleeves. The women's model is designed with a slightly shorter length. The flat seams enhance comfort against the skin. To reduce aging, polyurethane is not used in the materials. Environmentally conscious, some materials are made from organic cotton and recycled fibers. The matching sweatpants (Product Code: GCW43342) are also recommended for a complete set-up. *The Re-Optimum series was realized with the cooperation of Dr. Yoshinari Shimizu, a professor emeritus at Osaka Metropolitan University, who has researched environmental adaptation and sleep in health sciences for over 30 years. Re-Optimum - C3fit Technology

Size Chart
 LengthWidthSleeve LengthHem WidthCuff Width
25955784319
36157804520
46359824720

All measurements are in (cm).

Because outer measurements are taken by hand, slight variations (about 1–2 cm) may occur depending on the product.

Measurement methods may vary depending on the material, product shape, and whether accessories are included.

To confirm the best fit, we recommend measuring a similar item you own and comparing it with the garment measurements.

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

Looks

Rio Optimum Sweatshirt (C3fit / Women's)
1/20

151cm / 2 size

Rio Optimum Sweatshirt (C3fit / Women's)
2/20

153cm / 2 size

Rio Optimum Sweatshirt (C3fit / Women's)
3/20

153cm / 2 size

Rio Optimum Sweatshirt (C3fit / Women's)
4/20

153cm / 2 size

Rio Optimum Sweatshirt (C3fit / Women's)
5/20

153cm / 3 size

Rio Optimum Sweatshirt (C3fit / Women's)
6/20

154cm / 2 size

Rio Optimum Sweatshirt (C3fit / Women's)
7/20

154cm / 2 size

Rio Optimum Sweatshirt (C3fit / Women's)
8/20

158cm / 3 size

Rio Optimum Sweatshirt (C3fit / Women's)
9/20

158cm / 2 size

Rio Optimum Sweatshirt (C3fit / Women's)
10/20

158cm / 3 size

Rio Optimum Sweatshirt (C3fit / Women's)
11/20

159cm / 3 size

Rio Optimum Sweatshirt (C3fit / Women's)
12/20

159cm / 3 size

Rio Optimum Sweatshirt (C3fit / Women's)
13/20

159cm / 3 size

Rio Optimum Sweatshirt (C3fit / Women's)
14/20

159cm / 3 size

Rio Optimum Sweatshirt (C3fit / Women's)
15/20

160cm / 2 size

Rio Optimum Sweatshirt (C3fit / Women's)
16/20

160cm / 2 size

Rio Optimum Sweatshirt (C3fit / Women's)
17/20

160cm / 3 size

Rio Optimum Sweatshirt (C3fit / Women's)
18/20

160cm / 3 size

Rio Optimum Sweatshirt (C3fit / Women's)
19/20

162cm / 3 size

Rio Optimum Sweatshirt (C3fit / Women's)
20/20

162cm / 3 size

Reviews

Nov 27, 2025

Second purchase

I am very satisfied with the comfortable warmth, design, and color, so I purchased a second one.

K
Age: 60s
Usage Scene: -
Gender: female
Fit: just right
Height: -
Size: 3
Weight: -
Color: IN
May 06, 2025

Recovery

I bought it in a different color. It's comfortable♪

Hana
Age: 50s
Usage Scene: Lifestyle
Gender: Female
Fit: Just right
Height: 151-155cm
Size: 2
Weight: 41-45kg
Color: TG

Materials & Technologies

GREEN MATERIAL
1/2

GREEN MATERIAL

Materials that consider the environment, such as recycled and plant-derived materials.

Photoelectronic
2/2

Photoelectronic

Photoelectronic refers to fibers that utilize the far infrared rays emitted by the body through the action of special ceramics for warmth. By mixing with various materials, effective thermal insulation is achieved.

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