Hydro Flask

Standard Flex Straw Cap Lid

Sku: SFS001/BLK


Estimated delivery between June 21 and June 24.

In stock

Hydration on the go just got easier with our leakproof, insulated Flex Straw Cap. Add it to your favorite Standard Mouth Hydro Flask bottle to easily enjoy cold hydration anywhere.

We offer FREE delivery on all orders over €100 (excluding overweight items*) to the Republic of Ireland and Northern Ireland. For any order below this value, we charge a small delivery fee of €5 per delivery. Exceptions apply. Read more here.

Returns are free to any of our stores in Dublin Carrickmines, Dublin Blanchardstown and Cork City Centre. Read more about our return process here.



Hydro Flask Standard Flex Straw Cap Lid

Find out more about Standard Flex Straw Cap Lid below.


  • Standard Mouth Flex Straw Cap fits all Hydro Flask Standard Mouth Bottles
  • Straw is easy to trim to fit your favorite Hydro Flask
  • Flex Strap is easy to transport and comfortable to carry
  • Honeycomb™ Insulated cap for maximum temperature retention
  • Leakproof when closed so you can reliably sip and transport your refreshment without worry
  • BPA-Free & Toxin-Free
  • Removable components for easy cleaning
  • Also compatible with Small Flex Strap Packs

Care Advice

  • Dishwasher safe, or use our Straw & Lid Cleaning Set
  • Not intended for use with carbonated beverages
  • Flex Straw Cap not intended for use with hot liquids
  • Keep hot liquids out of the reach of children

Made for

  • Home
  • Everyday
  • Travelling
  • Walking
  • Running
  • Skiing
  • Sailing
  • Camping
  • Snow
  • Cycling
  • Gym & Training