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Insulated Stainless Steel Adventure Flask 330ml - Siren Red

Compact insulated flask with smooth 360° drinking – made for warm-ups, wind-downs, and transitional time by the water.

£19.95
Description

Wherever the water takes you, be bold in Siren Red with the 330ml Adventure Flask. Your brew stays hot for eight hours in double-wall vacuum insulation. The 360° drinking lid lets you sip from...

Wherever the water takes you, be bold in Siren Red with the 330ml Adventure Flask. Your brew stays hot for eight hours in double-wall vacuum insulation. The 360° drinking lid lets you sip from any angle – so no need to rotate, no glugging and no random spills. Ergonomically slim to hold, the perfect size to fit in cupholders, and completely leakproof when closed, it’s ideal for heading to the shore, getting ready to hit the water, and warming up afterwards. Finished in tactile powder-coated Siren Red for dependable grip, it’s made for swims, surf checks, and enjoying relaxed waterside moments.

Red Equipment - UK
Red Equipment - UK

Smooth drinking, easy performance

Feature set

Feature set

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Red Equipment - UK

360° Drinking Lid 01

Smooth, intuitive 360° drinking allows you to sip from any angle without glugging or splashing – ideal for moving, driving, or warming up on the go.

Red Equipment - UK

Secure Closure 02

Screw-on lid lets you drink, close, and carry with confidence – intentional flow when open, leakproof when fully sealed.

Red Equipment - UK

Condensation-Free Finish 03

Vacuum insulation prevents exterior condensation, keeping hands dry and bags free from moisture.

Red Equipment - UK

Compact Size 04

Small enough to fit car cupholders, pockets and small bags, making it easy to use while driving, walking, or transitioning to and from the water.

Red Equipment - UK

Easy-Clean Design 05

Simple construction with wide opening and dishwasher-safe components makes day-to-day cleaning quick and hassle-free.

Premium 304 Stainless Steel

Built from food-grade 304 stainless steel for long-term durability, corrosion resistance, and pure taste – withstands wet, sandy, salty environments.

Double-Wall Vacuum Insulation

Advanced double-wall vacuum construction keeps drinks hot for up to eight hours or cold for 16, maintaining temperature in real-world conditions.

Grab-&-Go Capacity

A perfectly sized 330ml volume for hot or cold drinks on the move – enough to warm up or chill out without excess weight or bulk.

BPA-Free & Non-Reactive

Food-safe, BPA-free materials preserve the natural taste of drinks, with no flavour transfer between uses.

Red Equipment - UK
Red Equipment - UK

Insulated Stainless Steel Adventure Flask 330ml

Easy hot or cold drinks on the move, with smooth 360° drinking – wherever the water takes you.
4.7
Rated 4.7 out of 5 stars
Based on 6 reviews
6 reviews
  • PS
    Peter S.
    Verified Buyer
    Reviewing
    Insulated Stainless Steel Adventure Flask 330ml - Bitter Orange
    Rated 3 out of 5 stars
    Yesterday
    Insulated flask

    Brilliant design, fully sealed top and then a no spill drink top, so can use in the car 😁

    Keeps coffee hot for hours.

    Plus love the colour 👍

  • JW
    Judith W. P.
    Verified Buyer
    Reviewing
    Insulated Stainless Steel Adventure Flask 330ml - Admiral Blue
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Simplicity

    Small, easy to clean and comfortable to use.

  • AC
    Adam C.
    Verified Buyer
    Reviewing
    Insulated Stainless Steel Adventure Flask 330ml - Bitter Orange
    I recommend this product
    Rated 5 out of 5 stars
    1 week ago
    Great colour! Good, but small. Need better size options.

    Was the only anti-spill insulated cup and needed an item to finish my order so I got this for my car. Honestly, it's too small volume, for me. Didn't think much about it just wanted the no spill for a car cup. Unless you're using it for tea/whiskey or something they should add 475-650mL or similar size(s). Base is a good width, tiniest bit wider base would still be fine to keep it good for different size cup holders but not to much if it is increased. Keeping the same lid size if you make some new higher volume versions would be nice too, so you can switch back & forth with different colour combos. Decently insulated.

    I half-filled with ice & cold water for my car cup holder and just have another bigger insulated bottle to occasionally top up. I can fit it in my pocket if I happen to bring it on a walk. And the colour is great. Not a 5 star because the size for me but that's my fault, so it still gets a 5. Bigger sizes and these would be great so you don't spill all over yourself accidently while driving.

  • AC
    Anna C.
    Verified Buyer
    Reviewing
    Insulated Stainless Steel Adventure Flask 330ml
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Snazzy steel sipping

    I love my new takeaway coffee cup. It makes for sustainable sipping, and it's a bonus that the cup is so snazzy and stylish. The removable top is easy to use, and I appreciate being able to sip from anywhere around the circumference. The aroma of the coffee is able to be enjoyed, too, compared to single-slot cups.

    Easy to clean, and the design is so simple without overly complex springs and gadgets that are an annoying characteristic of other brands' reuseable cups lids. A magnetic spot to anchor the lid to the side of the mug would help prevent misplacing the top lid; or redesign with a gasket-type click up and down one-piece lid. Overall, I am very happy with my travel cup - especially because it keeps my coffee hot for hours!

  • RO
    Ryan O.
    Verified Buyer
    Reviewing
    Insulated Stainless Steel Adventure Flask 330ml - Bitter Orange
    I recommend this product
    Rated 5 out of 5 stars
    1 month ago
    Great travel flask

    Absolutely perfect size, love that it's almost anti spil with the high lip would highly recommend