Notice Regarding the Discontinuation of "Sukkiri Fit" and Current Season Stock | CORE SHIELD
August 31, 2026
Sales of the "Trim Fit (Men's Long-Sleeve Mock Neck Innerwear)" will be discontinued once current stock is sold out. Additionally, excluding the bucket hat, all other products are not expected to be restocked until 2027 or later. We are providing this update along with information regarding our future product lineup.
1. "Trim Fit" will be discontinued while supplies last
There are no plans for reproduction. Currently, size L and XL in white are sold out.
We apologize for any inconvenience this may cause to those who have preferred its form-fitting design.
Some sizes and colors are already sold out. Please check the latest stock status via the size selection menu on each product page.
2. Products other than the bucket hat will not be restocked until 2027 or later
The three styles—Relaxed Fit, Women's High Neck, and Sleeveless—are not scheduled for further production until 2027 or later. This means that our current inventory is all that will be available for the 2026–27 autumn/winter season.
While we are not discontinuing these products, they will be out of stock once the current inventory is depleted until the next production run. If you are planning to use them for the upcoming season, please check the available sizes and colors as soon as possible.
Production of the bucket hat will continue. We will provide an update regarding the next restock date as soon as it is decided.
3. Regarding future men's long-sleeve innerwear
Following the discontinuation of the Trim Fit, "Relaxed Fit" will be the only remaining option for men's long-sleeve innerwear. We will continue to carry the sleeveless version (Men's V-Neck Sleeveless Innerwear) as before.
Differences between the two fits
| Trim Fit (Discontinued) |
Relaxed Fit (Continuing) |
|
|---|---|---|
| Fit/Feel | Form-fitting silhouette. Ideal for wearing alone or as an undershirt | Loose silhouette. Less constrictive |
| Sleeves | To the wrist | Extends to the back of the hand |
| Fabric Properties | Blocks 76% or more of near-infrared rays / 99% or more of UV rays, UPF50+ (All figures are fabric test values) | |
While the fabric and functions are identical, the wearing experience is not. For those who have favored the form-fitting feel, the Relaxed Fit may not be a direct replacement. You might consider choosing one size smaller; please feel free to contact us if you are unsure.
Note that the sleeves extending to the back of the hand are a feature unique to the Relaxed Fit. This provides more coverage in situations where the backs of your hands are exposed to sunlight for long periods, such as while driving or playing golf.
4. Current availability
- While supplies lastTrim Fit (Men's Long-Sleeve Mock Neck Innerwear)
- Restock from 2027Relaxed Fit (Men's Long-Sleeve Innerwear)
- Restock from 2027Women's Long-Sleeve High Neck Innerwear
- Restock from 2027Men's V-Neck Sleeveless Innerwear
- Production continuedBucket Hat
※ Please check stock status via the size selection on each product page. Depending on the timing of your order, items may sell out just beforehand.
※ Next restock dates are estimates. They may be subject to change due to production schedules.
※ All stated figures are fabric test values and do not guarantee performance during actual use.
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