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25% lighter than our 21 oz (621 ml) standard mouth bottles means this lightweight stainless steel bottle weighs less, so you can do more.
21 oz Standard Lightweight Flex Cap
The Honeycomb™ insulated wide mouth cap with a flexible perforated strap and aluminum pivots cut weight in our leakproof design.
- 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