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🇬🇧 Delivery to the United Kingdom & Northern Ireland

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  • Free returns on Orders over £35

Estimated delivery time: 3-4 business days
(No delivery on Sundays or public holidays.)

A Glimpse into the Blockhütte Community

Insulated Mug - Spare Sealing

£3.99

Tax included.

Size:
Color: Black
Menge:
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Made to fit

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Through our many travels in the past, it became increasingly important to always have something to eat and drink with us – for both environmental and cost reasons. We started looking for a stainless steel travel mug and reusable bottles. But what we found on the market disappointed us: low-grade steel, poor insulation, and constant leaks. That’s when our mission became clear – to create a sustainable, leakproof, and truly durable insulated travel mug that combines performance with purpose.

— Nils & Malte, Founders of Blockhütte

100% Leakproof – No Spills, No Stress

We know how frustrating it is when your backpack gets soaked just because a seal failed again. We’ve been there too. That’s exactly why we designed your new leakproof coffee cup with a solid, one-piece seal and an extended thread. The result? A precise fit that keeps your reusable coffee cup tightly closed – and your bag completely dry.

Coffee Mug with Climate Contribution

Every eco-friendly coffee cup we produce contributes to climate protection. Since 2021, we’ve partnered with ClimatePartner to fully offset the CO₂ emissions from production and transport. So you’re not just choosing a high-quality thermal mug for tea or coffee – you’re making a sustainable impact. Want to learn more? Just click here.

Superior Heat & Cold Retention

All our insulated travel mugs feature our signature double-wall vacuum insulation with a thermal coating. This ensures your favourite drinks stay hot for up to 8 hours and cold for up to 10 hours – whether you’re sipping coffee at your desk or enjoying iced tea on a summer hike. It's the perfect thermal coffee mug for everyday use.

Fast & Reliable UK Delivery

At Blockhütte, packing orders is still a founder’s job – which means your parcel is usually packed the same day you order and shipped the next working day. Want your personalised travel mug quickly? No problem. We pride ourselves on delivering fast, efficient service throughout the UK.

Recyclable & Plastic-Free Packaging

Sustainability is at the heart of everything we do. That’s why your BPA-free travel mug comes in fully recyclable, plastic-free packaging. We keep materials to a minimum to reduce waste and protect the planet – right from the start.

Food-Grade & Flavour-Neutral

All our stainless steel coffee mugs meet the highest food safety standards. Made from certified 304 stainless steel, they are 100% taste-neutral, BPA- and BPS-free, and contain no harmful plasticisers. The result? A clean, pure taste – whether it’s coffee, tea or a smoothie.

✅ Safe. Durable. Enjoyable.

Made to fit

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Leakproof Stainless Steel Travel Mug – Built for Real Life


Tired of so-called “leakproof travel mugs” that leave coffee stains in your bag? So were we. The alternative? Plastic cups – but those are often made from synthetic materials and can contain harmful substances like BPA or BPS. That just wasn't good enough for us.
At Blockhütte, we set out to design the best insulated travel mug on the market. One that combines durability, performance and a clean design you’ll be proud to carry. We’ve improved every detail – from the precision-sealing lid to the inner thread and full-surface gasket. The result? A truly reusable coffee cup with lid that keeps your drink secure – and your bag dry. No leaks. No compromises. Just peace of mind, wherever you go.

Blockhütte Stainless Steel Travel Mug – Built to Last

We’re not big on self-praise – which is why we let independent reviewers speak for us. Trusted platforms like Vergleichen.org have rated our products “Sehr Gut” – Excellent.

Why? Because it’s the little things that matter:

  • ✔ Vacuum-insulated stainless steel body
  • ✔ 100% leakproof screw-top lid
  • ✔ Free replacement silicone seal included
  • ✔ Reusable cotton pouch for safe transport
  • ✔ Optional personalised engraving

We back every insulated travel mug with a 60-day trial and a 3-year warranty – because we know you'll love it.

This isn’t just a thermal mug for coffee and tea. It’s the travel mug for work, commute, or weekends you’ll reach for again and again – because it just works. Leakproof. BPA-free. Stylish. Built to last.