High elasticity with 2x stretch rate for flexible movement and zero binding sensation
One-piece underarm cut for enhanced stretch and activity range
Moisture absorption level 4-5, quick-drying properties accelerate sweat evaporation
Infrared fiber technology (75D far-infrared fibers) with ≥0.92 infrared emissivity
Infrared heating effect raises surface temperature by 2.6°C, providing warmth in cold and wet conditions
Highly breathable and continuously warming fabric
Certified quality standards including color fastness, shrinkage, and durability (third-party tested)
Design & Construction:
Three-needle five-thread stitching with neat seams and structured silhouette
3D cut neckline and shoulder lines for enhanced fit and comfort
High-elastic buff fabric for flexible stretch and zero pressure
Suitable for layering without overheating
Size Chart (cm):
| Size | Length | Chest | Shoulder Width | Hem Circumference | Sleeve Length |
|-------|--------|-------|----------------|-------------------|---------------|
| S | 64.5 | 97 | 42.6 | 93 | 59.5 |
| M | 66.5 | 101 | 43.8 | 97 | 61 |
| L | 68.5 | 105 | 45 | 101 | 62.5 |
| XL | 70.5 | 109 | 46.2 | 105 | 64 |
| XXL | 72.5 | 113 | 47.4 | 109 | 65.5 |
| XXXL | 74.5 | 117 | 48.6 | 113 | 67 |
Sizing Recommendations:
Chest circumference measured horizontally at the fullest part of the chest
Shoulder and sleeve length measured from shoulder neck point to wrist
If measurements fall between sizes, smaller size offers a closer fit, larger size offers a looser fit
When chest and waist measurements suggest different sizes, choose based on chest size
Care Instructions:
Close all pockets and zippers before washing
Suitable for hand wash or machine wash on gentle cycle
Do not soak or bleach
Wash dark and light colors separately
Avoid vigorous rubbing or twisting to maintain fabric function
Hang to dry in shade, avoid direct sunlight
Use neutral detergent, avoid disinfectants or bleach to preserve fabric properties
Certifications & Testing:
Moisture absorption and quick-dry tested according to GB/T21655.2-2019
Stretch elongation tested (Janezt-JSBZ-5004) with 83.0% horizontal stretch
Far-infrared emissivity and heating tested per GB/T30127-2013 standards
Color fastness and shrinkage meet national standards
Third-party laboratory verified performance and quality
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Additional Features:
Soft, wrinkle-resistant, and shape-retentive with skin-friendly comfort
Zero binding and unrestricted movement with high elasticity
Warmth retention and moisture management suitable for cold and wet weather
Durable and long-lasting wear with resistance to pilling, snagging, fading, and deformation
Note:
Product performance data sourced from third-party testing agencies
Minor variations may occur between production batches and colors without affecting product use
Actual product should be referred to for final sizing and color selection
| Width | 32.0 |
| Height | 2.3 |
| NetWeight | 0.36 |
| Brand | Beneunder |
| Model | EL888 |
| Product Type | Men's High-Elasticity Base Layer T-Shirt (Round Neck, Initial Warmth) |
| Durable quality | machine washable, resistant to pilling, snagging, fading, and deformation |
| Fit | Regular, tailored fit |
| Available colors | Twilight Black, Soft White, Wood Tea Green |