Hydro Flask 40 Oz Lightweight Wide Flex Cap – Insulated Stainless Steel Water Bottle – Hiking, Commuting Sapphire Blue

Price: $54.95
(as of Sep 22, 2026 23:38:08 UTC – Details)


Joyfully Lightweight. The New Lightweight Series from Hydro Flask delivers the same durability and performance in a lightweight, sleek design. The ultimate hydration companion for those who want performance without the weight. Crafted with durable pro-grade stainless steel and featuring TempShield® double-wall vacuum insulation, this sleek, lightweight water bottle keeps drinks cold for up to 24 hours and hot for up to 12 hours, making it perfect for everyday use. The sleek design slides easily into bags and totes, while the perforated strap with aluminum pivots ensures a comfortable, secure grip on the go. The leakproof Flex Cap means you can toss it in your bag without worry, and the stainless steel delivers pure taste. Dishwasher safe for easy cleaning, this reusable water bottle maintains its vibrant color wash after wash. Stay hydrated with a bottle that combines lightweight portability, superior temperature retention and reusable durability. The Hydro Flask Lightweight Series delivers everything you need in a stylish, high-performance design that is ready to move.
40 OZ LIGHTWEIGHT SAPPHIRE BLUE BOTTLE: A sleek, lightweight stainless steel bottle with the Hydro Flask insulation and durability you love. The smooth, shiny exterior easily slides into bags and totes while keeping your drinks cold up to 24 hours and hot up to 12.
24 HOURS COLD. 12 HOURS HOT: The insulated water bottle keeps drinks cold for 24 hours and hot for 12 thanks to double-wall vacuum insulation. TempShield insulation is designed to be lightweight and efficient temperature retention, keeping contents ready to sip.
LEAKPROOF: Say goodbye to leaky water bottles. The Hydro Flask Lightweight Flex Cap is leakproof when closed. Toss it into your bag without worry.
PURE TASTE: Durable pro-grade stainless steel ensures pure taste and no leftover flavor transfer from this insulated metal water bottle. So, today’s water won’t have any taste of yesterday’s iced tea.
DISHWASHER SAFE: Easy to use and easy to clean, just toss the lid and bottles into the dishwasher. These lightweight reusable bottles are designed to keep bright color. Being dishwasher safe means your favorite Hydro Flask is always at-the-ready.
LIGHTWEIGHT: The Lightweight reusable water bottle features perforated, flexible straps with aluminum flex pivots. The airy design accents the sleek, lightweight technology of the stainless steel water bottle.
FIT: Fits the Hydro Flask Medium Lightweight Boot, and all Hydro Flask Wide Mouth caps. Accessories sold separately.
Customers find this thermos to be a perfect water bottle that keeps water cold for the whole day and stays hot for an extended period. They appreciate its lightweight design, color, and compatibility with cup holders, noting it fits in all drink holders and pockets. Customers like its size, with one mentioning it’s big enough to last all day, and they find it sleek in appearance. While some customers say it lasts forever, others report it denting easily.