2/3 Gallon Insulated Water Bottle 87oz - Keeps Cold 48 Hrs

In this review the WATERSY 2/3 gallon insulated water bottle is judged as a practical choice for people who need large, reliable hydration on the go; the single biggest reason to buy is its capacity and insulation, which deliver continuous hydration and cold retention for long outings. The reviewer found the 87oz size especially useful for day hikes, gym sessions, and work shifts, and appreciates the stainless steel construction and copper-lined interior for maintaining taste. It is not flawless, but the build and thermal performance are the clearest selling points.

Key Features

• LARGE CAPACITY: The 87oz volume provides extended hydration without frequent refills, ideal for full days outdoors or long gym sessions.
• DOUBLE-WALL VACUUM INSULATION: The bottle uses double-wall and vacuum-sealed insulation to keep drinks cold for up to 48 hours and hot for up to 24 hours.
• 18/8 STAINLESS STEEL WITH COPPER LINER: The food-grade materials and copper-lined interior help preserve flavor and prevent metallic aftertaste over prolonged use.
• LEAK-PROOF DESIGN: A silicone ring and advanced sealing in the spout cap make the bottle effectively leak-proof for transport in bags and backpacks.
• NON-SLIP AND DURABLE BASE: The sweat-proof coating and rubber bottom pad reduce wear and improve grip on wet or uneven surfaces.
• BPA FREE: The reusable, residue-free construction avoids bisphenol A and supports safer everyday use.

Who It's For

The bottle suits hikers, campers, gym-goers, and commuters who want one large container to cover long outings without topping up; the 87oz capacity is particularly useful when access to refills is limited. It also works well for people who prefer stainless steel and copper-lined interiors to keep beverages tasting fresh and free of residues.

Those who need a very lightweight or ultracompact water bottle for fastpacking or long trail runs should look elsewhere, as the size and durable construction prioritize thermal performance and capacity over minimal weight and packability. Users who expect rough handling might want to consider reinforcement for the handle, since some customers reported mixed durability there.

Pros & Cons

Pros

• Excellent cold retention up to 48 hours thanks to upgraded insulation and a honeycomb thermal lid layer.
• Large 87oz capacity reduces the need to refill during long activities.
• Quality materials like 18/8 stainless steel and a copper-lined interior preserve taste and resist residue.
• Leak-proof cap and non-slip base make it practical for travel and outdoor use.

Cons

• Bulky size and weight when full make it less suitable for minimalist backpacking.
• Some reports indicate occasional handle durability issues after heavy impact.

Specifications

Capacity	87oz (2/3 gallon)
Material	18/8 stainless steel with copper-lined interior
Insulation	Double-wall vacuum with honeycomb thermal lid layer
Temperature performance	Cold up to 48 hours, hot up to 24 hours
Leak protection	Silicone ring and advanced sealing technology
Coating and base	Sweat-proof coating with rubber bottom pad
BPA	BPA free

Our Verdict

The WATERSY 87oz insulated water bottle is a strong choice for anyone who values long-lasting cold retention and a single large reservoir for day hikes, camping, or gym use; its stainless steel and copper-lined build offer good taste preservation and practical leak-proof features. It represents good value for people who prioritize capacity and thermal performance, though its bulk and occasional handle concerns mean ultralight users should consider other options.

Frequently Asked Questions

How long will it keep drinks cold?
Up to 48 hours for cold drinks and up to 24 hours for hot beverages using the double-wall vacuum insulation and honeycomb lid.

Is the bottle safe for everyday use?
Yes, it is made from 18/8 stainless steel with a copper-lined interior and is BPA free for residue-free use.

Will it leak in a bag?
The spout cap has a silicone ring and advanced sealing that provide 100% leak-proof performance in normal use.