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The best drinking flasks you can buy
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Best overall Hydro FlaskHydro Flask 24 oz Standard Mouth
Excellent temperature retention, durable stainless steel, and stylish design make it a top-rated choice for all day hydration.
- Long-lasting temperature retention
- Durable construction
- BPA-free and safe
- Not dishwasher safe
- Pricey compared to some
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Best for hot drinks STANLEYStanley Classic Vacuum Bottle 1.1qt
Rugged, reliable, and keeps contents hot for hours; perfect for long days out.
- Excellent heat retention
- Lifetime warranty
- Easy to clean
- Heavy
- Wide mouth can spill
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Best budget pick ContigoContigo Autoseal West Loop 24 oz
Affordable, leak-proof, and one-hand operation makes it convenient for daily commutes.
- Leak-proof design
- One-hand operation
- Good value
- Not for hot liquids
- Plastic lid may wear
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Best for gym TakeyaTakeya Actives 32 oz Insulated Water Bottle
Spout lid and sleek design ideal for workouts; keeps water cold all day.
- Easy to drink from spout
- Keeps cold for 24 hours
- BPA-free
- No handle
- Straw can be hard to clean
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Best style S'wellS'well 17 oz Stainless Steel Bottle
Fashionable designs and triple-layered insulation keep drinks cold 24 hours or hot 12 hours.
- Sleek and stylish
- Non-condensing exterior
- Wide mouth for ice
- Expensive
- Small capacity
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Best classic NalgeneNalgene 32 oz Wide Mouth
Simple, durable, and leak-proof; iconic design trusted for years.
- Very durable
- Dishwasher safe
- Inexpensive
- No insulation
- Wide mouth can spill
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Best for sipping CamelBakCamelBak Eddy+ 25 oz
Bite valve and straw system make it easy to drink without tilting.
- Easy to sip
- Leak-proof when closed
- Good capacity
- Straw cleaning required
- Not for hot drinks
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Best value THERMOSThermos Stainless King 40 oz
Large capacity and durable vacuum insulation at an affordable price.
- Large capacity
- Keeps hot/cold for hours
- Durable
- Heavy
- Lid can be hard to screw
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Best with straw lid Simple ModernSimple Modern Classic 32 oz
Includes both straw and chug lid; double-wall insulation keeps drinks cold.
- Two lid options
- Keeps cold 24 hours
- Powder coated finish
- Not for carbonated drinks
- Hand wash only
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Best lightweight ZojirushiZojirushi SM-SF48 16 oz
Ultra-light and slim design with superior insulation; nonstick interior for easy cleaning.
- Very lightweight
- Excellent heat retention
- Nonstick coating
- Small capacity
- Expensive per ounce