Mainstays 18 oz Plastic Purple Water Bottle Stainless Steel Screw Cap Lid with Strap, 1 Each Included
Mainstays 18 oz Plastic Purple Water Bottle Stainless Steel Screw Cap Lid with Strap, 1 Each Included
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Mainstays 18 oz Plastic Purple Water Bottle Stainless Steel Screw Cap Lid with Strap, 1 Each Included

|1,124 ratings

Key item features

  • Secure Hydration: This BPA-free Mainstays 18oz purple bottle features a secure stainless steel screw cap, effectively preventing leaks during transport and use.
  • Visible Intake: The transparent, shatter-resistant plastic construction allows for easy monitoring of water intake throughout the day.
  • Portable Design: A convenient carry strap enhances portability, making the bottle ideal for on-the-go hydration during various activities.
  • Durable Construction: Engineered for durability, the bottle withstands the rigors of gym workouts, hikes, and daily activities.
  • Ample Capacity: With an 18oz capacity, this bottle provides sufficient hydration for extended periods, reducing the need for frequent refills.
  • Effortless Maintenance: The bottle is designed for easy cleaning and filling, fitting most cup holders and backpack pockets for practical daily use.
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4.5 out of 5 stars
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1,124 ratings229 reviews
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Showing 1-3 of 229 reviews

Jan 20, 2026
Reviewer name: Linda
Item details
Color: clear
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

This is exactly what I needed for Zumba!

This is exactly what I needed for Zumba class because my blood sugar can drop suddenly and it's best for me to have both a water bottle and a sugar water bottle. The bottles are easy to open and close quickly, and the clear plastic shows me exactly what and how much is inside. (I use electrolyte powder to color the liquids.) My one warning is the moisture seal on the inside of the cap. I was cleaning them quickly one day and had the white seal drop out. I didn't notice when it did and the bottle started to leak as soon as it was on its side. I tested the other bottle, and the seal doesn't drop out easily, but I must have scrubbed or something to loosen it. Not a problem, the bottles are not expensive and now that I've bought a replacement, I'm more careful about how I clean.

Helpful?bc6fdda0-9a13-11f1-93e1-9baffe1877aa13372802598
Sep 9, 2025
Reviewer name: Bzy14
Top Reviewer
Item details
Color: clear
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Multiple uses

I haven't actually used these as a water bottle but for kids activities and for camping. I used them to make water sensory bottles and feel like they are the perfect size compared to other bottles. I haven't had any issues with leaks. For camping I used them to hold cracked eggs and French toast mix. They could just hang out in the cooler , the narrow design made it easy to fit things around them, and they held up well. The lid feels secure and is easy to get on and off.

Helpful?bc6fdda0-9a13-11f1-93e1-9baffe1877aa13372802598
Sep 17, 2025
Reviewer name: Sue44
Item details
Color: clear
5 out of 5 stars
5 out of 5 stars review

Verified Purchase

Yes buy them while on sale

Got these for my kids for school because they require clear reusable plastic bottles. My kids lose their water bottles often so I came to Walmart for cheap ones. These were $.25 each and for the price the quality is pretty decent. The plastic is sturdy, long and narrow so they fit well in a backpack. They hold 18 oz (not 16 like it says on the description) and the lid is plastic and stainless steel. Don't think the lid is too sturdy but for the price I'm willing to try. Got 6 to keep for next time my kids lose them again. I prefer this simple design of screw on lid because with other bottles that have straws and other mouth pieces make it easier for bacteria to hide in the different parts and for mold to grow. Also these do not leak. 10/10 purchase.

Helpful?bc6fdda0-9a13-11f1-93e1-9baffe1877aa13372802598
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