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Between rapid fire heat waves and heat domes, to sudden rain and cold snaps, the weather is keeping everyone on their toes this summer. Whether you’re battling scorching hot temperatures or grinding through an intense workout, staying cool and hydrated should be top of mind.

From Stanley and Yeti to Hydro Flask and Owala, you may find yourself reaching for that ice cold water bottle when the humidity isn’t giving you a break. In the mood for a new color or style to take to the gym? Do your kids need a small water bottle to take to class? We’ve got the summertime scoop on sizzling ways to save on your favorite brands.

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So if you’re sending your kids off to school with their brand new backpacks and lunch boxes – or better yet, buying for yourself – it’s a great time to snag these popular stainless steel water bottles on sale just in time for back-to-school season.

10 Popular Tumblers Marked Down For Back-To-School Sales

You don't have to be heading to the classroom to take advantage of these sales. Here are 10 popular water bottles currently on sale for back-to-school season, with major discounts at Amazon, Owala and more.

Be sure to check back for more back-to-school sales, including our most recent roundup featuring Back-To-School Shopping: Air Purifiers, Humidifiers And More.

1. STANLEY IceFlow Stainless Steel Tumbler with Straw

Price: $35, was $40 - 13% off at Amazon

Rating: 4.6-stars; 32,600+ company ratings on Amazon

Features:

• 30oz capacity with double-wall vacuum insulation
• Keeps drinks cold 12 hours and iced up to 2 days
• Narrow base on all sizes (except 64 ounces) will fit almost any car cup holder
• Screw-on lid and straw for splash-resistant design
• Made from 90% recycled BPA-free stainless steel
• Dishwasher safe
• Lifetime warranty, according to manufacturer

2. Owala 30oz FreeSip Bucket Handle

Price: $27.99, was $34.99 - 20% off at Owala

Rating: 4.5-stars, 1,500+ reviews on Owala

Features:

• Dual-function spout: sip through straw or swig directly
• Comfortable bucket handle with secure grip design
• Triple-layer insulation technology according to company
• Push-button lid with lock mechanism
• BPA, lead- and phthalate-free construction

3. Owala 40oz FreeSip Sway

Price: $36, was $44.99 - 20% off sitewide at Owala

Rating: 4.5-stars, 1,500+ reviews on Owala

Features:

• Large 40oz capacity with dual sipping options
• Bucket handle and contoured grip for easy carrying
• Triple-layer insulation keeps drinks cold
• Push-button lid with lock feature
• Wide opening for easy cleaning and ice addition
• Dishwasher-safe lid, hand-wash bottle

4. Owala FreeSip Insulated Stainless Steel Water Bottle with Straw (32oz)

Price: $32.99, was $34.99 - 6% off at Amazon

Rating: 4.6-stars, 4,900+ ratings on Amazon

Features:

• Patented FreeSip spout for sipping or swigging
• Double-wall insulation keeps drinks cold 24 hours according to company
• Push-to-open lid with carry loop that doubles as lock
• Wide mouth opening accommodates ice cubes
• BPA and phthalate-free
• Caution: Not for hot liquids

5. YETI Rambler 30oz Stainless Steel Vacuum Insulated Tumbler With MagSlider Lid

Price: $40, was $44.96 - 11% off at Amazon and Yeti

Rating: 4.7-stars, 52,000+ ratings on Yeti

Features:

• Magnetic lid technology helps keep drinks secure
• No-sweat design
• DuraCoat finish resists fading, peeling and cracking according to company
• 18/8 stainless steel construction for durability
• Fits standard cupholders
• Dishwasher safe

6. Hydro Flask 32oz Wide Flex Straw Cap Bottle

Price: $41.99, was $44.99 - 7% off at Amazon; $44.95 at Hydro Flask

Rating: 4.7-stars, 42,000+ ratings on Amazon

Features:

• 24-hour cold retention with TempShield insulation according to company
• One-handed operation with flexible handle
• Leakproof straw cap design
• Pro-grade stainless steel prevents flavor transfer
• Dishwasher safe

7. Hydro Flask 32oz Wide Flex Chug Cap Travel Bottle Reef

Price: $33.71, was $44.95 - 25% off at Amazon and Hydroflask

Rating: 4.6-stars, 180+ ratings at Amazon

Features:

• Cupholder-compatible design
• Wide mouth for ice, narrow chug spout for controlled sipping
• 24-hour cold insulation
• Leakproof when closed
• Dishwasher safe

8. Hydro Flask 21oz Standard Flex Cap - Black

Price: $25.38, was $34.95 - 27% off at Amazon; $34.95 at HydroFlask.com; $27.07 at Walmart

Rating: 4.7-stars, 12,700+ ratings on Amazon

Features:

• Versatile temperature retention: 24 hours cold, 12 hours hot
• Cupholder-friendly compact design
• Leakproof flex cap construction
• Stainless steel prevents flavor transfer
• Dishwasher safe

9. Owala Kids Insulation Stainless Steel Tumbler with Spill Resistant Flexible Straw (12oz)

Price: $14.39, was $19.99 - 28% off at Amazon; $19.99 at Owala

Rating: 4.5-stars; 2,500+ ratings on Amazon

Features:

• Child-friendly 12oz size with spill-resistant lid
• Removable flexible straw
• Insulated steel keeps drinks cold during play
• Durable construction withstands drops
• BPA and phthalate-free
• Dishwasher-safe lid

10. Simple Modern Kids Summit Water Bottle with Straw Lid (18oz)

Price: $21.24, was $24.99 - 15% off at Amazon

Rating: 4.7-stars, 12,600+ ratings on Amazon

Features:

• Leakproof straw lid design
• Double-wall insulation to maintain cold temperatures
• Cupholder-friendly size with carrying loop
• Lead, BPA and phthalate-free materials
• Limited lifetime warranty included

Price accurate and item in stock at time of publish.