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The Hydro Flask 40oz Lightweight Wide Mouth Trail Series perfectly balances performance and portability for those who value efficient hot or cold hydration.
Hydro Flask says:
Bring more, carry less. Generously sized for your longer pursuits, our 40 oz (1,183 ml) Lightweight Trail Series™ bottle is 25% lighter than our other 40 oz bottles, thanks to an innovative stainless steel design. Engineered to deliver the same cold refreshment you expect from Hydro Flask but without the weight, the Trail Series™ makes it easy to take your cold hydration as far as your spirit of adventure takes you.
Our Verdict
This bottle excels in lightweight design, weighing a mere 420 grams while maintaining an impressive 1,183 ml capacity. It fits comfortably in most backpack pockets and is ideal for hikers tackling longer trails. The double-wall insulation delivers as promised, keeping water icy cold for up to 24 hours and hot drinks warm for a solid 12—a feature handy on chilly morning starts and commuts.
While the 18/8 stainless steel construction feels sturdy, its thinner walls make it noticeably lighter than standard models. However, take care of it, as the bottle may dent if dropped. The wide mouth makes for easy filling.
- Reviewed by Ultralight Outdoor Gear
Features
- Ideal for lightweight hydration to keep you going further
- Fits most outdoor hydration filters
- Durable 18/8 Pro-Grade Stainless Steel construction
- TempShield™ insulation eliminates condensation and keeps beverages cold for up to 24 hours and hot for up to 12 hours
- Flexible perforated strap and aluminum pivots for added weight loss
- BPA-Free and Phthalate-Free
Specifications
- Weight: 420g
- Volume: 1183 ml
- Diameter: 3.3"
Material & Construction
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Stainless Steel Construction: 18/8 pro-grade stainless steel walls are thinner to reduce weight while maintaining durability.
