Best in 7 days
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Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Oct 4 - Oct 9
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For Your Every Summer RSVP, with Code: SUMMER15
Description
Hydroflask Standard Flex Cap 21oz/621ml S21SX441 - DewStainless steel, cup holder compatible, fits right in your packour reusable, refillable Standard Mouth insulated water bottle keeps cold drinks cold for 24 hours, hot drinks hot for up to 12 hours, and holds enough hydration for hours of fun.
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
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Best in 7 days
Best in 7 days
Best in 7 days
Best in 7 days
4.7 ★★★★★
Based on 1079 reviews
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Product Reviews
★★★★★ 5
Actually feels cool at night
Color: Light Gray, Size: Standard
I’ve been using these for several days now and I did notice a difference. I tend to get hot while sleeping, so I was curious if they would actually help, and they do feel cool when you lay on them. I also like that they’re soft and comfortable, not that weird texture some “cooling” products have. So far, I’ve been really happy with them.
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Reviewed in the United States on May 23, 2026
★★★★★ 5
🧊 PERFECT for hot sleepers!! BUY THEM 🤩
Color: 01 - Light Grey, Color: 01 - Light Grey
🧊🧊 baby 🤩😍 I am OBSESSED!! Pillow whore here 🤭 and I very rarely find anything worth writing a 5 star review for but let me just save you the time of searching anymore for the PERFECT pillow cases for hot sleepers!!! BUY THEM! 😍 I promise you will NOT be disappointed!! I have spent so much $ on pillow cases over the years, trying to find the perfect cooling ones... These are it!! 🤭🥳
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Reviewed in the United States on May 8, 2026
★★★★★ 5
It fit perfect
Color: 01 - Light Grey
The pillow case fit correctly. It's a great quality comfortable and very soft. Will definitely buy more.
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Reviewed in the United States on March 29, 2026
★★★★★ 4
Cooling pillows case
Color: 01 - Light Grey
Not bad good fit
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Reviewed in the United States on December 28, 2025
★★★★★ 5
Very cold
Color: 01 - Light Grey
Super cold
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Reviewed in the United States on February 25, 2026
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