- Product Description
• Brand WHYWORKS
- This liner uses ultrasonic welding technology: short welding time, automatic stitching without needles, eliminating thread-changing and achieving 5–10× the speed of traditional quilting. No broken-needle residue ensures higher safety, while strong adhesion and clear embossing create a three-dimensional, premium surface effect. The needle-free process prevents water penetration and enhances warmth retention. Roller-mold welding allows for diverse, complex, and customizable patterns. The intelligent system uses infrared edge-alignment for stable, precise stitching with minimal material loss. Fully automated frequency and speed control ensure consistent tension and smooth operation.
- Designed with a V-neck silhouette and relaxed dropped-shoulder construction. The front placket features a 5# YKK rubber-tooth zipper. Hem pockets and raglan sleeves are spliced with fleece. Diamond-pattern ultrasonic quilting adds warmth and water-repellent performance.
- Product Display

























