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近赤外線76%カット|UPF50+|体温上昇最大2℃抑制

着るだけで深部体温の上昇を最大2℃抑える。熱中症や発汗対策に。

MEDIA RECOGNITION

Featured in the Media

CORE SHIELD® has been featured as high-performance wear that targets both near-infrared and UV rays — a new option for people who are active outdoors.

Golf, morning walks, life under the sun —
do you know this kind of struggle?

Endless sweat and discomfort

That heavy, sweat-soaked shirt clinging to your skin… Sweaty hands slipping on the grip when it matters most… Feeling so uncomfortable you just want to go home early…

The toll on your body

Exhaustion hits the moment your round or work is over… The heat leaves you foggy, unable to focus or think clearly… Still tired after a full night of sleep, unable to do what you want the next day…

Worries about the heat

Outdoors with nowhere to escape, wondering “will I get through today okay?”… Every news report about dangerous heat makes you afraid to go outside… Worried that feeling unwell will make you miss work or important plans…

What's really behind that struggle

It's largely caused by

“ Near-infrared rays ”

UV protection alone isn't enough!

Heat energy that passes through the skin and reaches deep inside

  • Carries heat into the core of your body
  • Builds up fatigue and accelerates skin aging
  • The real source of that piercing, draining heat on your skin
How near-infrared rays affect the body
Is your sun protection really enough?

Your skin may be protected,
but heat is still getting in.

Sunscreen & UV-cut

They protect the skin surface, but can't block heat energy from entering the body.

They prevent sunburn on the skin surface, but can't block the heat energy that reaches deep inside the body.

Can't stop near-infrared heat
Cooling innerwear

Feels cool when you put it on, but doesn't stop heat from building up inside.

It may feel cool at first, but it does little to stop the heat of direct sunlight from building up inside your body.

Can't stop heat fatigue
Parasols & hats

They block direct sunlight, but not reflected heat or heat that passes through fabric.

They block direct sunlight, but not heat reflected from the ground or heat that passes through the fabric.

Can't block near-infrared heat
A hat that works like a parasol you wear

The CORE SHIELD® Bucket Hat uses the same fabric as our innerwear: a special fiber containing CWO® developed by Sumitomo Metal Mining Co., Ltd., called Trubeaute®.

View the Bucket Hat
PREMIUM TECHNOLOGY

Near-infrared and UV rays —
double protection in one layer.

CORE SHIELD® high-performance innerwear and bucket hat, built for intense heat. The lineup now protects not only your body but also your head from near-infrared and UV rays.

CORE SHIELD Image 01 CORE SHIELD Image 02 CORE SHIELD Image 03 CORE SHIELD Image 04
FOR MENS
Tap to switch images
CORE SHIELD Sleeveless White Front CORE SHIELD Sleeveless White Back CORE SHIELD Sleeveless Black Front CORE SHIELD Sleeveless Black Back
SLEEVELESS FOR MENS No sleeves, more coolness. Our model made for the hottest days.
Tap to switch images
Ladies White Front Ladies White Side Ladies White Back Ladies Black Front Ladies Black Side Ladies Black Back
FOR LADIES (2026 MODEL)
Tap to switch images
NEW CORE SHIELD Bucket Hat product image CORE SHIELD Bucket Hat black CORE SHIELD Bucket Hat worn
BUCKET HAT Heat protection starts at your head. A Made-in-Japan hat that blocks 76%+ of near-infrared rays.
Tap to switch images

革新的なプロテクトウェア

科学が証明する、確かな効果

PNXのコアシールドインナーシャツは、最先端の繊維技術により暑い時期は熱中症を防ぎ、寒い時期は光老化を防ぐ1年を通して着用できる革新的なウェアです。従来の紫外線対策ウェアとは一線を画す、科学的に証明された機能で、あなたの肌や身体を守ります。

熱中症の主原因は「近赤外線」にあり

紫外線+近赤外線を同時に遮断

  • 体温調節機能 体温上昇を最大2℃抑える
  • 紫外線カット機能 99%以上(UPF50+)
  • 近赤外線カット機能 76%以上
  • 光線過敏による肌トラブルを防止

    Trubeaute®(トゥルーボーテ)採用
    このインナーには、先進の機能素材 Trubeaute® を使用しています。
  • 近赤外線を吸収する糸
    世界中のビルや車の窓フィルムに使われる遮熱素材と同じ、住友金属鉱山(株)が開発したセラミック微粒子 CWO®※ を練り込んだ糸を採用。CWO®は高い近赤外線吸収力を持っています。
  • 紫外線を反射する糸
    酸化チタンを練り込んだ糸を組み合わせることで、強力な紫外線カット性能を実現。

これにより、夏は遮熱・UV対策、秋冬は光老化を防ぐという1年を通しての快適性と機能性を両立しています。

※CWO®…住友金属鉱山(株)が開発した、レアメタルを使用した無機材料のセラミック微粒子。

汗による不快感を溜め込まないドライキープ構造

超速乾+接触冷感で快適をキープ

  • 超速乾機能 通常のポリエステルの2倍
  • 接触冷感機能 吸湿冷感あり
  • 耐洗濯性能 洗濯寸法変化率1%未満
  • 汗による発疹や汗冷えなどを抑制
  • 動きを妨げない立体ストレッチ構造

    JIS規格(JIS L 1907・滴下法)による検査において、一般的なポリエステルの約半分の時間で乾くことが確認されています。超速乾機能により汗を溜め込まず、汗の不快感を大幅に軽減します。
    また、第三者機関であるケケン試験認証センターによる検査でも、接触冷感機能が正式に認められ、さらに洗濯後の寸法変化率はわずか-0.7%という優れた耐久性も証明されています。

VOICE OF CUSTOMERS

From people who had the same concerns Real users share their experience.

★ ★ ★ ★ ★
5.0

Less sweat after 18 holes.

The fabric is thicker than cooling shirts, so I was skeptical, but I clearly felt the difference on summer rounds. The burning feeling on the back of my neck eased, and I sweat noticeably less after 18 holes. I can't do without it now.

T.M

T.M.

Male, 60s · Weekly golfer

★ ★ ★ ★ ★
4.0

Like standing in the shade of a tree.

I could feel it keeping me cooler. Unlike cool-touch fabric, the coolness lasts. Especially when cycling and feeling the breeze, I actually feel cooler wearing it — just like stepping into the shade of a tree.

Y!

ban

Excerpt from a Yahoo! Shopping review

★ ★ ★ ★ ★
5.0

Better than I expected.

It kept the sun off and I stayed comfortable even under the blazing sun. I sweat more than most people, but it absorbed the sweat so it didn't run down. I also didn't get chilled by sweat when coming into an air-conditioned room. Better than I expected.

R

Keny

Male, 60s · Excerpt from a Rakuten review

★ ★ ★ ★ ★
5.0

No more “piercing” sun.

Even with sunscreen, I was getting more sunspots every year. When I learned that near-infrared rays contribute to photoaging, I decided to buy it. On my 20-minute bike commute, I no longer feel the sun piercing my arms and neck. I'm also happy that the high neck isn't uncomfortable.

K.S

K.S.

Female, 50s · Bike commuter

★ ★ ★ ★ ★
4.0

Cool the moment I put it on — even in the summer fields.

I thought long sleeves for farm work were something you just had to put up with in the heat. This feels cool the moment I put it on, and even in the fields in midsummer I feel less worn out. Four stars only because I'd love a beige color option too.

M.H

M.H.

Female, 60s · Farm work

★ ★ ★ ★ ★
5.0

“Wearable shade” for someone who dislikes air conditioning.

My son and his wife gave it to me after hearing that older people notice heat less easily. I don't like air conditioning, so it's like wearing shade. It's light and dries quickly after washing, so with two I can wear one every day. I see it as a tool for staying active for years to come.

S.A

S.A.

Female, 70s · Gardening / daily walks

*Excerpts and summaries of reviews from Amazon, Rakuten, Yahoo! Shopping (Japan) and customer survey cards, translated from Japanese. Individual experiences; results are not guaranteed.

JAPAN QUALITY

Made to protect,
crafted in Japan.

In Japan today, imports account for over 97% of all clothing supplied in the country. Only garments that require high-quality materials and advanced sewing skills are still made domestically.

Because this product is made to protect people, we insisted on making it in Japan. PNX CORE SHIELD innerwear is 100% made in Japan — from fabric production to sewing and packaging.

We use high-performance sewing machines also used for swimwear, delivering a comfortable fit and durability that stands up to repeated washing.

熱中症対策ウェアブランド

CORE SHIELD®(コアシールド)とは

CORE SHIELD®は、住友金属鉱山株式会社が開発した近赤外線吸収微粒子CWO®を配合した特殊繊維Trubeaute®を使用した、フェニックス株式会社の熱中症対策ウェアブランドです。熱中症の主要因である近赤外線(NIR)を、住友金属鉱山株式会社開発の近赤外線吸収微粒子CWO®を練り込んだ特殊繊維Trubeaute®(トゥルーボーテ)により76%以上カットする独自設計で、着用時の衣服内温度の上昇を最大2℃抑制することが第三者試験機関の試験で確認されています。UPF50+の紫外線カット、接触冷感、吸汗速乾機能を備え、ゴルフ・現場作業・農作業・散歩などの屋外活動を支えます。現在はインナーシャツと帽子を展開しております。今後もラインナップ拡充を予定しています。
近赤外線について詳しくは「近赤外線とは?紫外線との違いと熱中症・肌への影響」をご覧ください。

よくある質問

日差しも、気温も、意識の外へ。
暑さや紫外線・近赤外線に惑わされず、日々のパフォーマンスに全てを注げる環境をつくる。
「PNX」は「人々の挑戦を支える“第二の肌”でありたい」をコンセプトにした、高機能スポーツアパレルブランドです。

ブランドについて