Coolflask 64 oz Half Gallon Insulated Water Bottle — 3 Leakproof Lids, 48-Hour Cold

Coolflask Half Gallon Water Bottle is a 64 oz, 18/8 stainless steel insulated jug that includes three leakproof lids (screw, spout, straw) to keep drinks cold up to 48 hours or hot up to 24 hours for all-day hydration.

This roomy, reusable bottle blends durable stainless construction with triple-wall vacuum insulation and an anti-sweat finish to deliver temperature performance and a clean, odor-free drinking experience. Designed with an array of lid options, it adapts to hiking, commuting, gym sessions or desk use while cutting down single-use plastic waste.

How does the insulation maintain beverage temperature?

The Coolflask uses triple-wall vacuum insulation to slow heat transfer and preserve drink temperature longer than single-wall bottles. Its sealed design minimizes convective and conductive heat loss while the anti-sweat coating keeps the exterior dry.

• Triple-wall vacuum construction for long-term cold and hot retention
• Cold beverages stay chilled up to 48 hours; hot liquids up to 24 hours
• Anti-sweat finish prevents condensation and improves grip

Which lid should I use for different activities?

Three leakproof lids give you flexibility: a wide screw-on lid with a flip handle for filling and ice, a spout lid for controlled pouring of warm drinks, and a straw lid for easy sipping during workouts. Each lid is designed to seal securely and suit specific on-the-go needs.

• Screw-on lid with flip-up handle — easiest for ice and filling
• Spout lid — better for hot liquids and measured pours
• Straw lid — convenient for hands-free sipping while active

Is this bottle easy to clean and safe for everyday use?

The Coolflask is made from 18/8 (304) food-grade stainless steel that resists rust and odor retention, and its components are BPA-free. Routine cleaning is straightforward; most parts are dishwasher-safe, though hand-washing the lid seals can extend their lifespan.

• 18/8 stainless steel body — rust-resistant and unscented
• BPA-free materials for safe drinking and reusable use
• Dishwasher-safe body; detach lids for thorough cleaning

How portable is the 64 oz size for travel and daily use?

With a half-gallon (64 oz) capacity, this bottle reduces refill frequency, making it a practical choice for long hikes, sporting events, or full workdays. The flip-up handle and leakproof lids keep it transport-friendly, though its size is larger than typical commuter bottles.

• 64 oz capacity — fewer refills during outdoor activities
• Flip-up handle for carrying or clipping to a bag
• Leakproof lids to prevent spills while on the move

Who is this for: The Coolflask Half Gallon Water Bottle is ideal for people who spend extended time outdoors, athletes who need sustained hydration, and eco-conscious users who favor a durable, reusable container. It suits anyone wanting high-capacity, temperature retention, and versatile drinking options without compromising on food-safe materials.