
2 vests * 1 packaging bag
Designed as a versatile companion for shirts, ideal for formal occasions.
Breakthrough craftsmanship with upgraded features.
Classic round neckline with patented U-neck design, lower than the second shirt button to remain hidden.
Narrow shoulder design and four-sided seam stitching ensure durability and shape retention.
No side seams for a smooth fit.
Soft, flat edging that is comfortable and non-restrictive, avoiding ruffled edges.
Made from 100% long-staple cotton with 7A grade antibacterial and anti-mite properties.
Enhanced comfort with elastic back collar strip to prevent itching.
Breathable, moisture-wicking, and quick-drying fabric suitable for all seasons.
Invisible fit technology with 8 advanced bonding processes to avoid bulges and discomfort under shirts.
Shoulder seam shifted 2.5cm to reduce friction and improve fit.
3.5cm elite-style hemming with luxury triple-line stitching, 21-24 stitches per cm.
Available in Business White, Gentleman Gray, and Classic Black.

Sleeveless Vest for Men, 2 Pieces (Black-Gray + Medium-Gray)
CNÂ¥62.90
100% Cotton (Long-staple cotton)
Antibacterial and anti-mite treatment (7A grade)
| Size | Suitable Height (cm) | Chest Circumference (cm) | Garment Length (cm) | Suitable Weight (jin) |
|-------|---------------------|--------------------------|---------------------|-----------------------|
| L | 165-175 | 85-95 | 65-66 | 115-125 |
| XL | 170-180 | 90-100 | 67-68 | 125-140 |
| 2XL | 175-185 | 95-105 | 69-70 | 145-155 |
| 3XL | 180-190 | 100-110 | 71-72 | 160-180 |
Size data is for reference only; manual measurement may have 1-3 cm deviation.
Patented U-neck design for discreet neckline.
Narrow shoulder and no side seams for a smooth silhouette.
High-quality stitching and hemming for durability.
Soft, breathable, and skin-friendly fabric with antibacterial and deodorizing properties.
Designed to replace traditional undershirts and tank tops, avoiding visible collar or back exposure.
Suitable for commuting, sports, and home wear.
Maintains shape and comfort throughout the day.
Easy to match with various outfits, providing a neat and elegant look.
Ideal as a base layer under shirts for formal and casual occasions.
Can be worn year-round due to breathable and moisture-wicking fabric.
Also suitable for outerwear in casual settings.
Gentle washing recommended to maintain fabric quality and antibacterial properties.
This FIRS Shirt Companion Vest combines advanced textile technology with classic design to provide comfort, durability, and a polished appearance for everyday wear.
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