Skip to content
  • 💳 Get more for less with big discounts and free shipping! 💳
  • 💳 Get more for less with big discounts and free shipping! 💳
Drinkware ShopDrinkware Shop
  • Menu
    • No products in the cart.

      Return to shop

  • Cart

    No products in the cart.

    Return to shop

  • Drinkware
    • Drink bottles
    • Coffee & tea
    • Travel mugs
    • Glassware
    • Outdoor drinkware
    • Coffee mugs
    • Barware
  • Gifts & home
    • Gifts
    • Gifts by type
  • Kitchenware
    • Food preparation
    • Kitchen storage
    • Kitchen tools
Home / Drinkware / Drink bottles / Insulated drink bottles
  • Hydro Flask 21oz Standard Mouth Flex Cap - White -Drinkware Shop Hydro Flask Drink Bottles Matchbox HydroFlask21ozStandardMouthWhite 1024x1024
  • Hydro Flask 21oz Standard Mouth Flex Cap - Laguna -Drinkware Shop Hydro Flask Drink Bottles Matchbox HydroFlask21ozStandardMouthLaguna 1024x1024
Sale!
Hydro Flask 21oz Standard Mouth Flex Cap - Seagrass

Hydro Flask 21oz Standard Mouth Flex Cap – Seagrass

$54.95 Original price was: $54.95.$38.47Current price is: $38.47.

SKU: S21SX321 Categories: Drink bottles, Drinkware, Insulated drink bottles
  • Safe and Secure Shopping
  • Shop with Confidence
  • Shop with Zero Worries
  • Quality Meets Affordability
Browse
  • Drinkware
    • Barware
      • Cocktail shakers
      • Ice moulds
    • Coffee & tea
      • Coffee pots, plungers & percolators
      • Stovetop kettles
      • Tea & coffee accessories
      • Teapots & tea infusers
    • Coffee mugs
      • Fine bone china coffee mugs
      • Glass coffee mugs
    • Drink bottles
      • Insulated drink bottles
      • Straw drink bottles
    • Glassware
      • Champagne glasses
      • Decanters & carafes
      • Dispensers
      • Spirit & cocktail glasses
      • Water glasses
      • Water jugs & pitchers
      • Wine glasses
    • Outdoor drinkware
    • Travel mugs
      • Glass coffee cups
      • Insulated coffee cups
  • Gifts & home
    • Gifts
      • Gifts for her
      • Gifts for him
    • Gifts by type
      • Cocktail gifts
  • Kitchenware
    • Food preparation
      • Cutting boards
      • Gadgets
      • Mills & grinders
      • Tongs
    • Kitchen storage
      • Food storage & produce savers
      • Kitchen & pantry containers
    • Kitchen tools
      • Cooking thermometers
  • Uncategorized
  • Description
  • Reviews (0)

For any activity you have planned, take on the day with the Hydro Flask 21oz Standard Mouth Flex Cap in Seagrass!

It comes with a patented TempShield double wall insulation made of 18/8 pro-grade stainless steel, which means your drink can stay cool for up to 24 hours, packed in a vibrant, sleek design. The compact size makes this Hydro Flask bottle easily stashable in your school bag or car cup holder.

Available in a wide range of colours, experience the best of Hydro Flask water bottles available online or in stores at Matchbox today!

Features:

  • Capacity: 21oz / 621ml
  • BPA-Free and Phthalate-Free
  • Durable 18/8 Pro-Grade Stainless Steel
  • TempShield insulation keeps drinks cold for up to 24 hours and hot for up to 12 hours
  • Features stainless steel collar and curved radius at the bottom edge for an updated look
  • Dishwasher safe

Reviews

There are no reviews yet.

Be the first to review “Hydro Flask 21oz Standard Mouth Flex Cap – Seagrass” Cancel reply

Related products

Sale!
Oasis Insulated Challenger Bottle with Screw Cap 550ml Island Blue
Quick View

Drink bottles

Oasis Insulated Challenger Bottle with Screw Cap 550ml Island Blue

$39.95 Original price was: $39.95.$27.97Current price is: $27.97.
Sale!
Maxwell and Williams Radiance Mug 400ml Set of 8 White Gift Boxed
Quick View

Drinkware

Maxwell and Williams Radiance Mug 400ml Set of 8 White Gift Boxed

$69.95 Original price was: $69.95.$48.97Current price is: $48.97.
Sale!
Oasis Insulated Sports Bottle Sipper Straw 780ml Neon Orange
Quick View

Drink bottles

Oasis Insulated Sports Bottle Sipper Straw 780ml Neon Orange

$44.95 Original price was: $44.95.$31.47Current price is: $31.47.
Sale!
BarCraft Wine Cube Set of 6 Stainless Steel Gift Boxed
Quick View

Drinkware

BarCraft Wine Cube Set of 6 Stainless Steel Gift Boxed

$29.95 Original price was: $29.95.$20.97Current price is: $20.97.
Sale!
Hydro Flask 20 Oz Kids Wide Mouth Straw Lid Snapper
Quick View

Drink bottles

Hydro Flask 20 Oz Kids Wide Mouth Straw Lid Snapper

$59.95 Original price was: $59.95.$41.97Current price is: $41.97.
Sale!
Frank Green Ultimate Ceramic Reusable Bottle 68oz - Buttermilk
Quick View

Drink bottles

Frank Green Ultimate Ceramic Reusable Bottle 68oz – Buttermilk

$89.95 Original price was: $89.95.$62.97Current price is: $62.97.
Sale!
Frank Green 10oz Reusable Cup - Brushed Steel
Quick View

Drinkware

Frank Green 10oz Reusable Cup – Brushed Steel

$44.95 Original price was: $44.95.$31.47Current price is: $31.47.
Sale!
Frank Green Ultimate Ceramic Reusable Bottle 68oz - Neon Pink
Quick View

Drink bottles

Frank Green Ultimate Ceramic Reusable Bottle 68oz – Neon Pink

$89.95 Original price was: $89.95.$62.97Current price is: $62.97.
OUR SHOP
  • My account
  • Checkout
  • Cart
  • Payment Method
CONTACT
  • About Us
  • Contact Us
  • FAQ
  • Returns & Exchanges
CUSTOMER SERVICES
  • Privacy Policy
  • Shipping & Returns
  • Term and Conditions
  • Delivery
STAY IN TOUCH

Sign up for exclusive offers, original stories, events and more.

    Copyright 2026 © www.glasshold.com
    • Drinkware
      • Drink bottles
      • Coffee & tea
      • Travel mugs
      • Glassware
      • Outdoor drinkware
      • Coffee mugs
      • Barware
    • Gifts & home
      • Gifts
      • Gifts by type
    • Kitchenware
      • Food preparation
      • Kitchen storage
      • Kitchen tools
    • Login

    Login

    Lost your password?

    Register

    Your personal data will be used to support your experience throughout this website, to manage access to your account, and for other purposes described in our privacy policy.