Hydro Flask Moonshadow 40 oz with Flex Straw Cap close-up showing leakproof lid for on-the-go use.
Hydro Flask Moonshadow 40 oz with Flex Straw Cap open for easy sipping.
Hydro Flask Moonshadow 40 oz with ice inside highlighting cold-holding design.
Moonshadow 40 oz wide mouth dishwasher-safe and durable stainless steel for daily use.
Moonshadow bottle in a backpack, a lightweight travel hydration companion.
Moonshadow 40 oz on a hiking trail ready for outdoor hydration.

Hydro Flask

Hydro Flask 40 oz Wide Mouth Flex Straw Cap Moonshadow | Leakproof, 24-Hour Cold

High-performance kitchen and dining made for confident daily results

$35.85

3 shoppers currently have this item in cart.

Low stock: only 5 left in inventory. Add to cart before it's gone.

Shop Pay installment options may appear at checkout where eligible.

Free shipping Secure checkout 100% refund eligible
Bundle & save Buy 2 and save checkout time

Premium kitchen and dining quality selected for United States (USA) customers.

Routine pack Build your routine pack (3)

Fast dispatch with always-free shipping and secure checkout on every order.

Free shipping

i

Free shipping on every order. Fast dispatch, tracked delivery, and secure checkout included.

Easy returns

i

Simple return flow and responsive support for eligible items.

Peak-demand shipping delays

i

During high demand, deliveries may experience short carrier delays. Tracking updates remain active for every order.

24/7 customer support

Questions before checkout? Our team is available and ready to help.

Return & RefundEasy returns and policy details Shipping PolicyDelivery process and tracking info
Share

Why customers choose Oico Home, Kitchen and Dining

Hydro Flask 40 oz Wide Mouth Moonshadow with Flex Straw Cap

Designed for active days and everyday routines, this bottle combines generous capacity with Hydro Flask's signature insulation. The Moonshadow color adds a modern, understated look, while the leakproof Flex Straw Cap makes sipping straightforward and secure.

Why this bottle fits your day

A 40-ounce capacity helps you stay hydrated without frequent refills, whether you're commuting, powering through a workout, or exploring the outdoors. The durable stainless steel resists flavor transfer, so your drinks taste as fresh as when you filled them.

  • Fill with ice for crisp, refreshing drinks that stay cold for hours.
  • Close the leakproof cap and sip with one hand while you move.
  • Wide mouth makes filling, adding ice, and cleaning easy.
  • Dishwasher-safe design keeps maintenance quick and simple.

TempShield double-wall insulation helps minimize temperature exchange, keeping beverages cold for up to 24 hours. The bottle's sturdy construction is built to endure daily use, commutes, or adventurous days out. With the Moonshadow finish, it still feels like a personal staple rather than a single-use item.

Real-life use cases

From basketball practice to long road trips, this bottle adapts to your schedule. The wide mouth helps you pack ice, while the cap stays securely closed in bags or backpacks. You can count on steady performance in a range of environments, whether indoors or outdoors.

  • Office commutes with reliable hydration at your desk or in transit.
  • Weekend hikes and park strolls with cold drinks that stay cool.
  • Gym sessions and travel that demand a dependable, easy-to-clean bottle.

Note: performance can vary with temperature and usage, but many users value the combination of capacity, ease of use, and durable design.

FAQ

Q: What are the key benefits of the Hydro Flask 40 oz Wide Mouth Moonshadow with Flex Straw Cap?

A: Leakproof Flex Straw Cap, 24-hour cold insulation, pure-taste stainless steel, and dishwasher-safe design for easy upkeep.

Q: How big is the bottle and how should I clean it?

A: 40 oz capacity; disassemble the straw lid and place all parts in the dishwasher for thorough cleaning.

You may also like