| Specification Category | Yasuda YS-CB1500Stainless Steel Flask Details | Yasuda YS-CB1500 Red Flask Details |
| Brand Identity | Yasuda | Yasuda |
| Model Number | YS-CB1500 Stainless Steel | YS-CB1500 Red |
| Total Fluid Volume | 1500 ml (1.5 Litre Capacity) | 1500 ml (1.5 Litre Capacity) |
| Thermal Retention Lock | 24 Hours Hot / 24 Hours Cold | 24 Hours Hot / 24 Hours Cold |
| Inner Chamber Material | Premium Grade 304 Stainless Steel | Premium Grade 304 Stainless Steel |
| Outer Chassis Material | Heavy-Duty 201 Stainless Steel | Heavy-Duty 201 Stainless Steel |
| Internal Thermal Shield | Radiant Heat Reflective Copper Coating | Radiant Heat Reflective Copper Coating |
| Sealing / Handle Compound | New Toxin-Free FDA Test Passing Silicone | New Toxin-Free FDA Test Passing Silicone |
| Aesthetic Color Palette | Classic Bare Metallic Stainless Steel | Brilliant Coated Crimson Red Color |
| Ergonomic Portability | Integrated Secure Flex Carry Handle | Integrated Secure Flex Carry Handle |
| Maintenance Profile | Easy to Clean / Easy to Use Geometry | Easy to Clean / Easy to Use Geometry |
| Chassis Form Factor | High-Impact Rugged Vertical Cylinder | High-Impact Rugged Vertical Cylinder |
Dual-Grade Stainless Steel & Copper Core: Constructed with a food-safe inner 304 stainless steel wall and a rugged outer 201 stainless steel shell, fortified internally with an insulating copper coating.
24-Hour Hot & Cold Thermal Lock: Performance-tested to deliver maximum climate insulation, securing stable liquid temperatures for up to 24 hours hot or 24 hours cold regardless of outdoor weather.
FDA-Approved Silicone Handle Grip: Integrated with a heavy-duty, tactile silicone carrying handle configuration certified to pass strict FDA testing guidelines for completely toxin-free hydration mobility.
1500ML Large Volumetric Capacity: Features a high-capacity 1500 ml interior liquid envelope layout designed to supply sufficient daily water requirements for field trekking, sports, and workplaces.
Streamlined Maintenance & Operation: Engineered with a wide-access neck profile making the structural vessel exceptionally easy to use and easy to clean, paired with a seamless zero-leak seal matrix.