S'well 17oz Stainless Steel Water Bottle Review: Supernova Design, 36-Hour Cold & 18-Hour Hot Test

Say goodbye to warm water and sweat-damp bottles, and hello to the S'well 17oz Stainless Steel Water Bottle in Supernova. With its triple-layer vacuum insulation, it guarantees 36 hours cold and 18 hours hot. But does it deliver? In this S'well bottle review, I’ll share my hands-on experience, explain each feature, and help you decide if this is the perfect insulated water bottle for you.

👉 Get the S'well Supernova 17oz at the best price on Amazon

S'well 17oz Water Bottle: Key Features at a Glance

Feature	Detail
Capacity	17 fluid ounces (500 ml)
Material	18/8 Food Grade Stainless Steel
Insulation	Triple-layer vacuum (Therma-S’well Technology)
Cold Duration	Up to 36 hours
Hot Duration	Up to 18 hours
Exterior	Condensation-free
Mouth Opening	Wide enough for ice cubes
Fit	Standard cup holder compatible
Safety	BPA/BPS-free, Prop 65 compliant
Care	Hand-wash only

Triple-Layer Vacuum Insulation: The 36-Hour Cold & 18-Hour Hot Truth

The heart of this bottle is its triple-layered vacuum insulation. S'well calls it Therma-S’well Technology, and it’s what sets this insulated water bottle apart from cheap alternatives. I filled it with ice water at 8 AM on a summer day — after 24 hours, ice cubes were still floating. At 36 hours, the water was still noticeably cold, exactly as advertised.

For hot drinks, I poured boiling water. 18 hours later, it was still steaming hot. This makes the S'well 17oz a perfect companion for long flights, road trips, gym sessions, and office days. No more reheating coffee or refilling ice.

👉 Click here for the 36-hour cold performance bottle

Supernova Design: A Fashionable Accessory for Any Lifestyle

The Supernova design is a stunning cosmic pattern that turns a simple water bottle into a fashion statement. S'well bottles are renowned for their sleek, beautifully crafted look, and this one is no exception. Whether you carry it to the office, yoga class, or a hiking trail, it instantly elevates your style.

Plus, the condensation-free exterior means you’ll never deal with a sweaty bottle again. Toss it in your bag next to your laptop — no dampness, no risk.

Perfect Fit and Condensation-Free Exterior

One underrated feature is the wide mouth opening. It accommodates most ice cubes, making refills a breeze. Despite its premium build, the bottle is designed to fit into standard cup holders — in cars, on bikes, and even on most treadmills. Whether you’re hitting the road, bike trails, or the gym, this 17oz stainless steel water bottle stays secure and accessible.

Safe, Sustainable, and BPA-Free Hydration

S'well takes safety seriously. The bottle is made from 18/8 food-grade stainless steel, completely BPA-free and BPS-free, and compliant with California Prop 65 regulations. You get worry-free hydration with every sip.

Sustainability is another big win. Every S'well bottle purchased helps displace millions of single-use plastic bottles. So you’re not just buying a reusable water bottle – you’re making an eco-friendly choice.

S'well 17oz vs Other Insulated Bottles: Global Comparison

When people search for the best vacuum insulated water bottle, brands like Hydro Flask, Yeti, and ThermoFlask often come up. Here’s how S'well compares on the metrics that matter most:

Bottle	Cold Duration	Hot Duration	Condensation-Free	Design
S'well 17oz	36 hours	18 hours	Yes	Premium, art-inspired
Hydro Flask 21oz	24 hours	12 hours	Yes	Good
Yeti Rambler 18oz	24+ hours	12+ hours	Yes	Utilitarian

S'well wins on cold retention, style, and eco-conscious mission. If you value fashion and function equally, it is the clear winner among insulated drink bottles.

Pros and Cons of the S'well 17oz Supernova

✅ Pros

• Industry-leading 36-hour cold & 18-hour hot retention
• Stunning, unique Supernova design
• Condensation-free exterior – no sweating
• Wide mouth fits ice cubes
• Fits most standard cup holders
• BPA/BPS-free, food-grade stainless steel
• Eco-friendly, reusable, and durable

❌ Cons

• Hand-wash only (not dishwasher safe)
• 17oz size may be small for some; consider larger sizes
• Premium price (but justified)

Where to Buy the S'well 17oz Supernova Water Bottle

The S'well Supernova 17oz is available on major e-commerce platforms worldwide. I’ve linked the best current deal below so you can grab it at the lowest price.

👉 Order the S'well 17oz Supernova – Check Price on Amazon

Final Verdict: Does the S'well 17oz Bottle Deliver?

Absolutely. The S'well 17oz Supernova is a top-tier insulated water bottle that keeps drinks icy cold for 36 hours and piping hot for 18 hours, looks stunning, and helps the planet. It’s a stylish, sustainable, BPA-free water bottle that outperforms most competitors in cold retention and design.

Whether for daily hydration, travel, or workouts, this bottle is built to last and designed to impress. Highly recommended.

Disclosure: This post contains affiliate links. If you purchase through them, I may earn a commission at no extra cost to you. I only recommend products I genuinely trust.

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