






















Techwear Cooling, Quick-Dry, Antibacterial Crew Neck T-Shirt N3987
Tax included. Shipping calculated at checkout
The cool sensation you feel the moment you put it on lasts all day long. It sets a new standard for functional T-shirts.
Made with Japanese-imported Jersey Cotton 3.0, the SEGUNDA COOLTECH is a high-performance T-shirt that combines an instant cooling sensation upon contact with the skin with rapid moisture absorption and quick-drying properties. Its nano-technology-based antimicrobial treatment keeps the shirt clean, ensuring lasting comfort even during extended wear.Another appealing feature is
its practicality: thanks to wrinkle-resistant treatment, it retains its shape without needing to be ironed after washing. The perfect silhouette—neither too tight nor too loose—strikes the right balance, allowing you to wear it naturally on its own or as an undershirt.
The simple white color is a versatile shade that naturally harmonizes with any bottoms. Pair it with slacks, jeans, or shorts for a wide range of looks, from office wear to everyday casual styles. Whether you
prioritize functionality or value a simple, comfortable fit, we confidently recommend this summer staple T-shirt.
Model Information▼
Male model: 185 cm / 70 kg, wearing size XL
SEGUNDA+ Cool Tech High-Performance Stretch DRY T-Shirt
Material: 72% cotton, 28% polyester
Sheerness: None
Features: Antibacterial, cooling to the touch, wrinkle-resistant, made with jersey cotton
Weight: 200g
COOL Tech effectively lowers the perceived temperature by 3–5°C, prevents stuffiness to maintain comfort, features nano-moisture absorption, and the white version is thick enough to prevent see-through
Click here for the feature page
Size Chart(Unit: cm/Japan Size)
| body length | Cherst width | Shoulder width | Sleeve Length | |
| XS | 70 | 118 | 58.6 | 20 |
| S | 72 | 122 | 60 | 21 |
| M | 74 | 126 | 61.5 | 22 |
| L | 76 | 130 | 63 | 23 |
| XL | 78 | 134 | 64.5 | 24 |
◎Sizes are measured with the garment laid flat. There may be slight variations (1–3 cm) depending on the product and the person wearing it.
Choose options























Featured collection
Featured collection



















![[Total Sales Exceed 5,000 Pairs!!] Tech Fabric Cool Dry Pants / Cooling-to-the-Touch, Moisture-Wicking, Quick-Drying Pants N2318](http://nnine.shop/cdn/shop/files/ChatGPT_Image_2026_6_19_18_34_22_1.png?v=1781861672&width=1254)













![[Total Sales Exceed 11,000 Units!!] [2026 Latest Improved Version] Technology Base Tee N1912](http://nnine.shop/cdn/shop/files/ChatGPT_Image_2026_6_19_18_40_33_1.png?v=1781862041&width=1254)







