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Description
HYDRAPAK - 500ml Ultraflask Speed Malibu BluePart of our ultra light series, the 500 ml is so light, you might forget you brought it. Weighing in at just over an ounce, its optimal hydration, no matter what kind of runner you are. Its pliable material conforms to most pockets, it shrinks as you drink to minimize water movement and it can be used with or without the tube. Topped with a new feature, the SpeedFill cap, makes aid station refills a breeze. Ultra lightweight, ultra useful. BPA & PVC
Part of our ultra-light series, the 500 ml is so light, you might forget you brought it. Weighing in at just over an ounce, its optimal hydration, no matter what kind of runner you are. Its pliable material conforms to most pockets, it shrinks as you drink to minimize water movement and it can be used with or without the tube. Topped with a new feature, the SpeedFill cap, makes aid station refills a breeze. Ultra-lightweight, ultra-useful.BPA & PVC free
Leakproof
Freezable
COMFORTABLE FIT
Soft material conforms to most hydration vests, belts, or pack pockets
COMPRESSIBLE
Flexible design shrinks as you drink reducing water movement
CUSTOMIZABLE HYDRATION
Choose between a bite valve and a drink tube cap
SPEEDFILL CAP
Topped with a flip-top cap for fast refills at aid stations
Full Features
- A great hydration addition or replacement to your running vest, pack, or belt pocket
- Vest-pack fit provides bounce-free stability and a flexible flask shoulder to prevent chafing so you can focus on FKTs and PRs
- High-flow bite valve auto-seals after each sip, eliminating annoying drips
- Large standard 42mm opening lets you fill the UltraFlask easily with ice and drink mixes
- Customize your cap with two options depending on your run or vest, directly mount your bite valve or use the straw cap (4 in / 100 mm)
- Made of ultra-durable, abrasion-resistant TPU & RF welded seams for superior durability and elasticity
- 100% BPA & PVC free, wide working temperature range (can be frozen - max temp 60 C / 140 F)
Specs
CAPACITY : 500 ml / 17 fl oz
DIMENSIONS : 186mm x 58 mm / 7.3 x 2.3 in
WEIGHT : 41 g / 1.4 oz
MATERIAL : TPU, PP/POM, Silicone
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 4
Great fluffy ones
Color: White, Size: King(2Pack)
I originally order this pillows to use as Shams for an oversize king comforter but they came out to small for that, but after seen the qualitu i kept them for my daily use ones.
The size is perfect, and the quality feels much higher than the price suggests. It's soft yet supportive, holds its shape well, and adds a real touch of comfort to the bed. For the price, it’s a fantastic deal. The pillow look big and they are super fuffly.
Highly recommend if you're looking for great value without sacrificing quality!
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Reviewed in the United States on April 11, 2025
★★★★★ 5
Fantastic pillow
Color: White, Size: King(2Pack)
Super comfortable for a bit of a firm pillow it is king size and lightweight, it gets pretty warm pretty quick, I stack both pillows on top of each other in the same pillow case for extreme support but that's just me.
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Reviewed in the United States on June 7, 2026
★★★★★ 5
King size great pillows!!!!!
Color: White, Size: King(2Pack)
I ordered this 2-pack of king-size pillows to upgrade my bed, and I’m so glad I did. The size is perfect for a king bed and instantly made everything look more full and put together.
When they arrived, the pillows fluffed up nicely and felt soft yet supportive. They’re not too flat and not overly firm, which makes them really comfortable whether you’re sleeping on your back or side.
I’ve been using these for a bit now and they’ve held their shape well through the night. They provide good neck and head support without feeling stiff, and they don’t go flat by morning.
What I like most is how versatile they are — great for sleeping but also perfect for propping up in bed while reading or watching TV. For a two-pack, the quality is honestly impressive.
Overall, these are a great value and exactly what I was looking for. If you want comfortable, well-filled king-size pillows that look and feel great, I would definitely recommend this set.
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Reviewed in the United States on February 10, 2026
★★★★★ 3
Thickness
Color: White, Size: King(2Pack)
Pillows are a great price good quality just a little flat
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Reviewed in the United States on October 14, 2025
★★★★★ 5
Comfy pillows! Excellent deal
Color: White, Size: Queen(2Pack)
I received these pillows shrink-wrapped flat as a pancake. But I've received other things this way including whole king-sized mattresses and they always puff up to normal size once you pop them out of the plastic wrap.
These pillows puffed up pretty quickly. I did shake them and pound on them a little off and on for about an hour before slipping some pillow cases onto them. Their not super fluffy but not too flat. I like that their soft yet have a little support. My husband really likes his too. We both get a good sleep on these. I'm a side sleeper so it's really comfy for me to have some "squishiness" like these have.
As far as quality goes, these are nicely stitched and the fabric feels soft. The pillows are rather lightweight and I won't know how durable these are until we've used them for a while.
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Reviewed in the United States on November 24, 2024