What is the outside diameter?

Just slightly over 1/4 of an inch.

Would these fit Thermos Funtainer bottles?

Hello. The width of these straws also fit Thermos Funtainer water bottles, but it will be a bit longer. You can cut these straws.

Do they fit 64 oz the coldest waterbottle?

Thef fit a 40 oz bottle.I am not sure about a 64 oz.

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- 10 PCS Replacement Straws for Hydro Flask Wide Mouth Straw Lid | Plastic Straws for Hydroflask 32oz-40oz, 0.33 in Plastic Straw, Cuttable

Product ID: 80598930

Details

Brand
Greant
Color
Clear
Item Highlight
Plastic Straws
Manufacturer
Greant
Material
Plastic
Number of Items
10

📏0.33'' diameter precision fit

🔄10 pcs + 2 cleaning brushes included

✂️Cut-to-fit adjustable length

₨324

Duties & taxes included

In stock

Sold byAmazon SeychellesDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🥤 Sip in Style, Stay Hydrated with Confidence!

PREMIUM DURABILITY - Crafted from high-quality plastic that meets or exceeds OEM standards—built to last.
CUSTOMIZABLE LENGTH - Easily trim straws to your bottle’s exact size for a seamless sipping experience.
HEALTH FIRST DESIGN - Regular straw replacement and easy cleaning keep your hydration fresh and safe.
PERFECT COMPATIBILITY - Tailored for Hydro Flask wide mouth lids from 18oz to 64oz—never worry about fit again.
COMPLETE REPLACEMENT KIT - 10 durable straws plus 2 cleaning brushes and a silicone coaster for all-around maintenance.

Greant’s 10-piece replacement straw set is engineered for Hydro Flask wide mouth bottles (18oz-64oz), featuring a precise 0.33-inch diameter and 9.85-inch length that you can trim for a perfect fit. The kit includes durable plastic straws, two cleaning brushes, and a silicone coaster, ensuring easy maintenance and long-lasting use. Designed to meet or exceed OEM quality, these straws promote healthier hydration by enabling regular replacement and thorough cleaning.

Specifications

ASIN	B07GH7R18J
Best Sellers Rank	#119,330 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #2,169 in Water Bottle Accessories
Brand Name	Greant
Color	Clear
Customer Reviews	4.4 4.4 out of 5 stars (1,813)
Included Components	10 pcs straws for hydro flask wide mouth lid + 2 pcs straw brushes + 1 gasket
Item Weight	1.76 ounces
Manufacturer	Greant
Manufacturer Part Number	HYARS10
Material Type	Plastic
Model Number	HYARS10
Number of Items	10
Other Special Features of the Product	Length Adjustable
Size	9.8 inches
Unit Count	10 Count

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