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- USA
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11
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Description
Skyflask Speed 350mlRacing or training, take matters into your own hands. This minimalist soft flask handheld features an innovative thumb loop that allows you to hold the flask securely without wasting energy gripping or squeezing. Versatile and ambidextrous, it can be held in either hand and the soft, neoprene loop provides a comfortable and chafe free fit. The adjustable, sweatproof strap fits most hand sizes and snuggly stays in place with a Velcro style closure.
Racing or training, take matters into your own hands. This minimalist soft-flask handheld features an innovative thumb loop that allows you to hold the flask securely without wasting energy gripping or squeezing. Versatile and ambidextrous, it can be held in either hand and the soft, neoprene loop provides a comfortable and chafe-free fit. The adjustable, sweatproof strap fits most hand sizes and snuggly stays in place with a Velcro-style closure. Topped with Hydrapak's SpeedFill™ Cap for quick refills on the go.
- SPEEDFILL™ CAP: Designed for fast filling - flips open for quick refills and snaps closed for leak-proof seal
- ADJUSTABLE STRAP: Sweatproof strap can be adjusted to fit a wide variety of hand sizes, the Velcro style strip ensures strap stays in place while on the run
- THUMB LOOP: Innovative thumb loop allows you to hold the flask securely in either hand without gripping or squeezing. Soft, neoprene padding provides a comfortable and chafe-free fit
- HOLD WITH EITHER HAND: Versatile and ambidextrous, the flask can be carried in either the left or right hand, with or without the thumb loop
- LARGE OPENING: 42mm opening lets you fill the flask easily with ice and drink mixes
- EASY TO CLEAN: Hand strap is removable for cleaning. Flask and cap can be placed in dishwasher and the strap hand washed
- COMPRESSIBLE: Flexible design shrinks as you drink, reducing water movement and easily stores away in your pocket when empty
- Capacity: 350 ml / 12 fl oz
- Weight: 59.8 g / 2.1 oz
- Dimensions: 203 mm x 71.2 mm / 8.1 in x 2.8 in
- Filtration: 42mm Filter Cap Compatible (sold separately)
- Material: TPU, Polyoxymethylene, Polypropylene, Silicone, Nylon, Neoprene, Stainless Steel
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
4.4 ★★★★★
Based on 1186 reviews
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Product Reviews
★★★★★ 5
Comfortable Socks, color variety not as implied
Size: Medium, Color: True Gray Heather Assorted (6 Pairs)
Pros: Comfortable socks, with wide, not tight band at the ankle. Wish I'd bought them sooner.
Con: Amazon description shows a photo of 6 pairs of socks, 2 black, 2 gray, and 2 white. The pack actually comes with 2 black, 1 white, and 3 pairs of gray.
Haven't washed them yet. Will see how they stand up.
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Reviewed in the United States on June 14, 2024
★★★★★ 5
Not polyester! Thank you UA!
I never realized shopping for cotton socks in 2024 would be so difficult. Luckily I found these, and all the other Under Armour cotton socks and they are the best.
I cannot wear polyester, and these only have like 1%. I didn't realize our cotton is being replaced by polyester, and I don't like it. Bath towels don't work anymore either...
I need my cotton socks and towels, I love incandescent light bulbs, I'll always have a gas powered mower and leaf blower. Also butterfinger should've never their recipe. Just sayin...
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Reviewed in the United States on May 4, 2024
★★★★★ 5
Great quality
Size: Large, Color: True Gray Heather Assorted 2 (6-pairs)
The best socks, cotton quality
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Reviewed in the United States on June 28, 2025
★★★★★ 5
Great sock for everyday
Size: Large, Color: Black/Gray (6 Pairs)
So these are awesome but they are slightly thinner than older versions, shorter too. Just FYI if you a long time UA customer.
If you have never had their socks, I love them personally and only like one other brand better. They aren’t overly thick and they allow your feet to breath. I never have sweaty feet in these even in my warm boots. I also like that they don’t cut into my feet or get holes in the toes over long terms. The only reason I’ve thrown these out has been fraying near the ankle or someone (kids) thieving them.
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Reviewed in the United States on December 28, 2019
★★★★★ 5
LOVE THEM!!
Size: Small, Color: (001) Black / Black / Castlerock
LOVE! These socks are so comfortable! I wear a 5 in women's and a 3 in big kid shoes. The small fit me perfectly. I see where some say they run small but I can't say that was an issue for me. They are "snug" but thats what you want with a no show sock. I feel they have support vs the ones i used to buy at Walmart. They are very soft! I am actually buying more today and throwing my other ones in the trash!
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Reviewed in the United States on February 18, 2026
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