❄️ Stay cool, sip smart — hydration that keeps up with your grind!
The Hydro Flask 40 OZ Wide Flex Straw Cap in Black features TempShield double-wall vacuum insulation that keeps beverages cold for up to 24 hours. Made from durable 18/8 pro-grade stainless steel, it offers pure taste with no flavor transfer. Its leakproof insulated Flex Straw Cap and wide mouth design make it perfect for active professionals seeking reliable, stylish hydration on the move.
| Brand | Hydro Flask |
| Model Number | W40BFS001 |
| Color | Black |
| Product Dimensions | 14.61 x 14.61 x 22.86 cm; 640 g |
| Capacity | 1 Fluid Ounces |
| Material | Stainless Steel |
| Special Features | Double-wall, Leakproof |
| Item Weight | 640 g |
A**H
Love it
I like it. The thing I like is it keeps the water cold for 24 hours, very nice. Also, I use it with me in the pharmacy. Just make sure it is full to keep me hydrated. It is nice-looking and useful.
S**T
Bad quality
Got RUST inside after 2 months of occasional usage. How can good quality stainless steel get rusted? I would like to return this item. Would product team kindly contact me
Trustpilot
2 weeks ago
5 days ago
