21 oz. Standard Mouth Flex Cap Color:Lupine The lightweight and breathable construction

The lightweight and breathable construction keeps feet dry & happy from start to finish

Featuring our ergonomic Align™ orthotic to help place the foot in a more optimum position to assist with proper alignment

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21 oz. Standard Mouth Flex Cap Color:Lupine The lightweight and breathable constructionProduct Benefits Ideal size for all day hydration Fits most backcountry water filters TempShield insulation keeps beverages cold up to 24 hours and hot up to 12 hours Durable 18 8 Pro Grade Stainless Steel construction BPA Free and Phthalate Free Dishwasher safe Compatible with our Wide Mouth Flex Sip Lid and Wide Mouth Straw Lid Lifetime Warranty Size & Dimensions 32 oz Volume 946 mL Diameter 3. 55" Height 9. 4" Weight 15. 2 oz A Fan Favorite. Big