Discover our collection
Pebble Flask
Customize your Bottle + Pebble Cap + Loop
A leak-proof ergonomic lid that's inspired by the shape of a pebble. Best with loop—a strap to make carrying your flask easier.
Upgrade to Charm Loop—a strap with a keyring hole to accessorize your Flask for just P50.
Bubble Flask
Customize your Bottle + Bubble Cap + Band
Twice the flow for on the go. The Bubble Cap is made for faster flow and zero spills—so you can drink more, mess-free. Used with the Band: easy to grab, carry, or clip on.
Robo Flask
Customize your Bottle + Robo Cap + Connector
Designed for hydration on the go—so you can sip anywhere, anytime. Comes with a straw. Best with the Connector—a flexible strap for easy handling.
Upgrade to the Glider—a retractable metal straw for just P100.
Pebble Flask
Customize your Bottle + Pebble Cap + Loop
A leak-proof ergonomic lid that's inspired by the shape of a pebble. Best with loop—a strap to make carrying your flask easier.
Upgrade to Charm Loop—a strap with a keyring hole to accessorize your Flask for just P50.
Bubble Flask
Customize your Bottle + Bubble Cap + Band
Twice the flow for on the go. The Bubble Cap is made for faster flow and zero spills—so you can drink more, mess-free. Used with the Band: easy to grab, carry, or clip on.
Robo Flask
Customize your Bottle + Robo Cap + Connector
Designed for hydration on the go—so you can sip anywhere, anytime. Comes with a straw. Best with the Connector—a flexible strap for easy handling.
Upgrade to the Glider—a retractable metal straw for just P100.
Pebble Flask
Customize your Bottle + Pebble Cap + Loop
A leak-proof ergonomic lid that's inspired by the shape of a pebble. Best with loop—a strap to make carrying your flask easier.
Upgrade to Charm Loop—a strap with a keyring hole to accessorize your Flask for just P50.
Bubble Flask
Customize your Bottle + Bubble Cap + Band
Twice the flow for on the go. The Bubble Cap is made for faster flow and zero spills—so you can drink more, mess-free. Used with the Band: easy to grab, carry, or clip on.
Robo Flask
Customize your Bottle + Robo Cap + Connector
Designed for hydration on the go—so you can sip anywhere, anytime. Comes with a straw. Best with the Connector—a flexible strap for easy handling.
Upgrade to the Glider—a retractable metal straw for just P100.
Flask Essentials
We're here to help



Guide in assembling your flask cap
Select a cap set
Step 1
Slide the band onto the mouth of your Sunnies Flask. Make sure it fits snugly and is properly aligned to hold the cap in place.
Step 2
Place the Bubble Cap over the mouth of the bottle. Twist it clockwise to seal the flask securely.
Step 1
Insert the straw into the Robo Cap. If it’s too long, trim it at an angle to fit your Sunnies Flask (for 30oz Lite bottle, cut the straw in 25oz line), then reinsert firmly into the port underneath the cap.
Step 2
Take the Connector and slide both of its loops over each side of the Robo Cap’s “wings” (those raised side parts).
Step 3
Align the Robo Cap with the mouth of your Sunnies Flask. Twist it clockwise until it’s securely sealed. Make sure it’s tight to avoid leaks.
Step 1
For Loop or Charm Loop, slide it onto the neck of the cap until it snaps into place. Make sure it’s snug and comfortable for carrying.
Step 2
Hold your Sunnies Flask upright. Take the Pebble Cap and align its threads with the flask’s mouth.
Step 3
Turn your flask upside down briefly to make sure it’s leak-proof. If it leaks, unscrew and check if the gasket is in place, then reattach.
FAQs
How much is the Sunnies Flask?
Sunnies Flask starts at P695. This includes a bottle, cap, and strap in your color of choice. For extra protection the Boot is available for just $10 (16/25oz/30oz) or $12 (32oz).
Where can I buy a Sunnies Flask?
Sunnies Flask is available in some of our Sunnies Studios store. Find a store near you. It is also available online on Lazada, Shopee, TikTok Shop, and sunniesflask.com.
What are the available sizes of the bottle?
Our stainless steel bottles are available in 16oz, 25oz, and 32oz while our Lite bottle made with tritan is available in 30oz.
Can I customize my Sunnies Flask?
Aside from customizing the colors of each part of your bottle, you can also get your Sunnies Flask engraved* at any Sunnies Flask store and on our website.
*Engraving applies to all bottles except the Nata Lite Bottle.
Can I choose different colors per component of the Sunnies Flask?
Yes, we made Sunnies Flask the most customizable flask ever and encourage you to make it your own by customizing according to your preferences.
How many colors are available?
There are 45 colors* available for the bottle, cap, strap, and boot to form over 1,000,000 color combinations.
*select colors available for each bottle size, cap, strap, and boot
How long can it withhold cold and hot water temperature?
Our stainless steel bottles can hold cold liquids for 24 hours and hot liquids for 12 hours while our Lite bottle is non-insulated. Please handle hot liquids with care, as they may cause burns. The Lite bottle is not designed for extreme heat or boiling water.
What are the features of Sunnies Flask?
- Stainless Steel Bottle – made for enjoyable hydration, this bottle is double walled, and vacuum insulated that keeps drinks hot or cold for a long time. It’s also lead-free, BPA-free, leak proof, odor and stain resistant, and phthalate-free. Comes in 16oz, 25oz, and 32oz sizes.
- Lite Bottle – 30oz Tritan bottle that’s ultra-lightweight, drop-resistant, and easy to carry wherever the day takes you. It’s leak proof, BPA-free, BPS-free, stain and odor resistant, and phthalate-free. It’s also heat resistant but not designed for extreme heat or boiling water.
What material is Sunnies Flask made of?
Bottle:
- Stainless Steel Bottle – made with 90% recycled stainless steel and powder coated exterior
- Lite Bottle – made with Tritan, a BPA-free, durable plastic known for its glass-like clarity without the weight or fragility
Cap:
- Pebble Cap – made with polypropylene (PP) plastic and has a silicone rubber stopper with a stainless steel plug interior
- Robo Cap – made with polypropylene (PP) plastic and has a silicone rubber ring interior
- Bubble Cap – made with polypropylene (PP) plastic
Strap:
- Loop – made with silicone rubber
- Connector – made with thermoplastic polyurethane (TPU) plastic
- Band – made with thermoplastic polyurethane (TPU) plastic
Accessories:
- Straw – made with recycled polypropylene (PP) plastic and is easy to cut to fit all Sunnies Flask bottle sizes
- Glider – made with stainless steel and fits all Sunnies Flask bottle sizes
- Boot – made with silicone rubber
Has Sunnies Flask been tested?
Yes, Sunnies Flask has been tested by SGS, the world’s leading testing, inspection and certification company.
How do I clean the different components of my Sunnies Flask?
- Disassemble all parts—bottle, cap, strap, and boot—and wash with warm water and baking soda.
- For the Pebble Cap and Robo Cap, remove the silicone ring using the hook on your Sunnies Flask Cleaner.
- Gently clean the exteriors with a soft sponge.
- Use a long bottle brush to reach the bottom of the flask.
- If you’re cleaning a Lite bottle, skip the brush to avoid scratching the surface.
- For hard-to-reach areas, use the nylon brush for cap threads and the twisted brush for tight gaps.
- Make sure all parts are completely dry before reassembling.
Keep away from harsh cleaners like bleach and chlorine, and avoid putting your flask in microwaves, freezers, or boiling water. Please avoid dropping the bottle and using it for carbonated or perishable liquids.
Can I put my Sunnies Flask in the freezer?
We do not recommend putting your Sunnies Flask in the freezer if you want to keep your drinks cold. Instead, you can add a few ice cubes inside your Sunnies Flask to keep drinks cold.
Can I put other beverages inside my Sunnies Flask?
- Stainless Steel Bottle – suitable for both hot and cold drinks, but not recommended for storing highly acidic or perishable liquids for more than 12 hours, as this may cause corrosion over time
- Lite Bottle – not recommended for boiling hot, carbonated, or perishable liquids
All our bottles, regardless of size, are not recommended for carbonated drinks like sparkling water, soft drinks, kombucha, etc.
What's the warranty policy?
Sunnies Flask includes a Limited Lifetime Warranty against manufacturing defects and workmanship issues. This does not cover mishandling, damage caused by drops, dents, scratches, and natural wear and tear, and Sunnies Flask with engraving are not eligible for returns, exchanges, and cash on delivery payments.
Customers must sign up to Sunnies Club to enjoy the Sunnies Limited Lifetime Warranty. To know more about our policy, you can refer to Our Guarantee page.
Is Sunnies Flask part of the Sunnies Club rewards program?
Yes, Sunnies Club members will earn points with every purchase of the Sunnies Flask.
Does it come in a box?
Each component is safely stored and packaged in a kraft box.