Skip to product information
#PRODUCT
  • #PRODUCT
  • Hydro Flask_21oz (621mL) Standard Flex Straw Cap_Harbor Blue
  • #PRODUCT
  • Hydro Flask_21oz (621mL) Standard Flex Straw Cap_Harbor Blue
21oz (621mL) Standard Flex Straw Cap - Harbor Blue
Hydro Flask

21oz (621mL) Standard Flex Straw Cap - Harbor Blue
$79.99

Flip it and sip it.
Details

A cupholder-compatible water bottle with leakproof Flex Straw Cap—easy to fill, easy to drink. Open it up, add your ice, and flip to sip. The insulated stainless steel keeps it cold for up to 24 hours.

Features & Benefits

  • 24 hours cold, 12 hours hot
  • TempShield®️ double-wall vacuum insulation
  • Dishwasher safe
  • Leakproof when closed
  • Pure taste, no flavour transfer
  • Durable stainless steel
  • BPA-Free
  • Flex Straw Cap not intended for use with hot liquids
  • Not for use on a stove, in a microwave or freezer
Product care
  • Dishwasher safe — separate the straw, cap or lid and place them on the top rack.
  • Avoid dishwasher detergents containing bleach or chlorine; they corrode stainless steel and strip the powder coat.
  • To hand wash, use warm soapy water and a bottle brush to reach the base, then air dry with the cap off.
  • For stubborn stains or odours, soak with half a cup of hydrogen peroxide and two tablespoons of baking soda for 30 minutes, then wash as usual.
  • Do not use on a stove, in a microwave or in the freezer.
Size & fit

Standard Mouth 621mL — narrower opening, easier to drink from without a cap.

  • Cold up to 24 hours, hot up to 12 hours
  • 18/8 pro-grade stainless steel, BPA-free
  • Flex Straw Cap is top-rack dishwasher safe

Size & Dimensions

  • Capacity: 21oz (621mL)
  • Height: 23.9cm (9.40in)
  • Diameter: 7.24cm (2.85in)
  • Weight: 340g (0.75lb)
Shipping & returns

Free shipping on New Zealand orders over $199.99. Under $199.99, standard shipping is a $9 flat rate.

Changed your mind? Returns are easy — send it back unworn and in its original packaging and we'll sort a refund or exchange.

Why it's here

They made the reusable bottle an everyday object worth keeping around. Simple, durable and good at what it does.

Get to know them

Style it with

Elite Light Cushion No-Show Tab - Cool Plunge$34.90Feetures
Allpa 18L Daypack - Del Día$229.99Cotopaxi
Men's Cloudmonster 3 Hyper - Black and Ivory$370.00ON
MD Notebook A5 Lined - White$29.90Notebooks