• Double-Walled Glass Tea Flask | 400ml
  • Double-Walled Glass Tea Flask | 400ml
1 2

Napiers

Double-Walled Glass Tea Flask | 400ml

Double-Walled Glass Tea Flask | 400ml

£20.00 GBP
£20.00 GBP
Sale Sold out
Taxes included. Shipping calculated at checkout.

A 400ml double-walled glass flask designed for loose leaf tea and infusions. The borosilicate glass inner wall keeps your drink hot while the exterior stays cool to the touch — no sleeves, no coasters needed.

Compact enough for a desk or bag, and well-suited to slow, considered drinking throughout the day.

  • 400ml capacity
  • Double-walled borosilicate glass — heat retention without exterior heat
  • Suitable for loose leaf tea, herbal infusions, and hot drinks
  • Leak-resistant lid
  • Easy to clean

By: Napiers

How to use

Add loose leaf tea or a tea bag directly to the flask. Pour over hot water and steep to taste. Secure the lid and drink directly from the flask. Rinse thoroughly after each use. Hand wash recommended to preserve the glass.

View full details

Why Choose Double-Walled Glass Tea Flask | 400ml?

Glass is one of the cleanest materials for hot drinks — no plastic linings, no flavour transfer. The double-walled design means you get genuine heat retention without the flask becoming uncomfortable to hold. A considered choice for daily tea drinking.

Frequently Asked Questions

How much does delivery cost?

We offer free local delivery on all orders over £40 — otherwise a small service fee of £4.00 applies. We also deliver nationwide using Royal Mail. Price based on weight. Free delivery on orders over £75.

How long does delivery take?

We pick and pack your order within 2 working days, then send it on its way via Royal Mail. You can expect delivery within 5 working days from when you place your order.

Orders placed before 1:00pm Monday to Friday — we'll do our best to dispatch the same day, though during busy periods it may take 1–3 days. Orders placed after 1pm will go out the following working day.

Orders placed over the weekend (Saturday or Sunday) will be dispatched on the following Monday or Tuesday.

Shipping times are calculated from the day of dispatch, not the day of ordering. Please note these are estimated timeframes and not guaranteed.

What packaging do you use?

All orders are packed using reused and repurposed cardboard boxes and paper from our own deliveries. We use paper tape — no plastic in sight. For local deliveries, we also collect and reuse our own containers, so very little goes to waste.

Why buy from us?

We don't stock anything we wouldn't use ourselves. Every product on our shelves has been carefully researched to meet our sustainable standards — plastic-free, ethically sourced, and kind to the planet.

Read more

Free Delivery Over £75

100% Plastic Free Packaging

Dispatched Within 2 Working Days