GSI Outdoors Microlite 500 Flip Vacuum Bottle

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The super thin, ultralight design saves loads of weight on this modern flask. The flip top and push-button lock make drinking from it easier than ever too. With over 500ml of your favourite drink being kept warm or cold for the day you’ll end up taking this out more than you expected.

GSI Outdoors says

With its sleek design and clean construction, this high-spec, durable Glacier Stainless Vacuum Bottle will keep your beverages hot or cold for hours and hours. Perfect for commuting, picnic, sporting events and base camping.

Our Verdict

GSI Outdoors’ Microlite 500 Flip has been designed to save serious amounts of weight on traditional flasks while adding features that make it easier to use. The ultra-thin walls on the flask save significant amounts of weight without affecting the performance. It still keeps cold drinks cold for a really long time and has kept my hot drinks warm for an entire day out in the hills. The addition of the push button lock to open the lid for drinking is a great feature and easy to use. The whole top still screws off so it’s easy to fill and clean.

Once the top is unlocked there is a hole for drinking straight from the flask and a lip around the top makes this much easier than other flasks. The addition of a small hole at the top to allow air in also makes drinking much easier. The rubber grip on the base provides extra stability and durability which is great when you’re out in the hills and sit down for a drink so you don’t have to worry about where to put it down. 

– Reviewed by Ultralight Outdoor Gear

Features

• Incredibly lightweight, vacuum-insulated bottle provides 10 hrs. hot and 20 hrs. of cold retention while being 1/3rd lighter than traditional designs
• Impossibly thin, 2mm walls are thinner than most single wall plastic bottles for an amazingly compact footprint that fits anywhere
• 18/8 stainless steel provides unrivaled purity and durability
• Push-button, flip top cap locks closed for transport and locks open for easy drinking

Specifications

• Weight: 224g
• Capacity: 500ml / 17 fl. oz.
• Dimensions: 3” x 2.6” x 9.2”
• Material: Stainless Steel