| Specification Category | Yasuda YS-TB1000 SS Flask Details |
| Brand Identity | Yasuda |
| Model Designation | YS-TB1000 SS |
| Total Fluid Volume | 1000ml (1 Litre Capacity) |
| Primary Structural Material | 304 Food Grade Stainless Steel |
| Insulation Core Design | Double-Walled Vacuum Technology |
| Thermal Shield Layer | Inner Copper Coating Matrix |
| Temperature Retention Tiers | Keeps Hot or Cold for 24 Hours |
| Fluid Security Architecture | 100% Certified Leak-Proof Lid Assembly |
| Durability & Safety Rating | Rust-Resistant, BPA-Free, and Odor-Free |
| Aesthetic Outer Finish | Sleek and Durable Brushed Stainless Steel |
| Primary Usage Profiles | Travel, Office, Gym, Outdoors, and Daily Use |
| Chassis Form Profile | High-Impact Rugged Vertical Cylinder |
Premium 304 Food Grade Stainless Steel: Fabricated with an elite, safe, and long-lasting 304 stainless steel interior and exterior chamber that provides comprehensive rust-resistant, BPA-free, and odor-free everyday hydration.
Double-Walled Inner Copper Coating: Outfitted with a high-efficiency double-walled vacuum insulation architecture enhanced with an internal copper coating layer to mirror thermal radiation and eliminate heat transfer.
Verified 24-Hour Hot & Cold Lock: Performance-tested to deliver maximum temperature retention parameters, keeping your favorite beverages perfectly locked in at hot or cold states for up to 24 continuous hours.
100% Certified Leak-Proof Travel Design: Built with a heavy-duty, high-seal lid matrix that prevents internal moisture escape, making the vessel entirely leak-proof, travel-friendly, and perfect for mobile utility.
Sleek and Durable Exterior Finish: Crafted with a premium, classic brushed raw stainless steel outer finish sheet designed to resist fingerprint smudges and scratches while boosting structural durability.