# S'well Onyx Mug with Handle, 350 ml Stainless Steel Travel Mug

Carry coffee or tea with a handle and vacuum insulation in the S'well Onyx travel mug, with a 350 ml stainless steel capacity.

- [Original product page](https://www.ofertitastop.com/ie/product/swell-onyx-mug-with-handle-350)
- Market: IE
- Language: en-IE
- Currency: EUR
- Product updated: 2026-10-16T09:15:45.798Z
- Brand: S'well
- Model: S'well Onyx Mug with Handle, 350ml
- Category: Home & Garden > Kitchen & Dining > Tableware > Drinkware > Mugs
- Source store: amazon IE
- Active deal: Yes
- Price: 19.79 EUR
- Previous price: 24.43 EUR
- Rating: 4.4 / 5
- Reviews: 12

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## Description

## Fit and sizing

At 350 ml, this stainless steel mug is sized for a morning coffee or breakfast tea, with a handle that makes it comfortable to hold at home, at work or while travelling. Its dimensions are 8.8W x 10.8H centimetres, so you can judge the space it will take up alongside your usual travel essentials. The Black Onyx finish has a stone-like texture designed to add grip, bringing a practical detail to its understated look.

A slide-open, splash-proof lid helps protect your drink from spillages as you move around. The vacuum-insulated construction keeps drinks hotter or colder for longer, while the condensation-free exterior stays dry in your hand or bag. It offers a useful alternative to an open cup when you want a more contained drink for a commute or a desk-side break.

## Pros

The combination of a handle and a travel-ready lid makes this mug easy to use throughout the day: carry it between rooms, take it to work or keep it close during breakfast. Its 350 ml capacity suits a regular coffee or tea serving, and the reusable stainless steel construction is BPA/BPS-free. The vacuum insulation is useful for both hot and cold drinks, so the mug can move from a morning coffee to a chilled drink without changing its role.

The Black Onyx colour and textured finish give it a distinct look without sacrificing everyday practicality. When choosing between a travel mug and a simple open cup, the lid and insulation here are the key differences: they help contain splashes and maintain drink temperature for longer. The mug is also dishwasher safe, making routine cleaning more straightforward.

## Specifications

- Capacity: 350 ml
- Material: Stainless steel
- Colour: Black Onyx
- Dimensions: 8.8W x 10.8H centimetres
- Weight: 226 grams
- What’s included: Handle and lid

## Before you decide

**How much does the S'well Onyx mug hold?** It has a 350 ml capacity, suitable for a morning coffee, breakfast tea or another everyday drink.

**Does it help keep drinks hot or cold?** Yes. Its vacuum-insulated construction is designed to keep beverages hotter or colder for longer, without a stated time duration.

**How should I clean it?** The mug is dishwasher safe, so it can be cleaned in the dishwasher as part of your regular kitchen routine.

## Buying verdict

For a reusable travel mug with a handle, the S'well Onyx combines a practical 350 ml size with vacuum insulation and a splash-proof lid. It is well suited to people who want their coffee or tea close at hand at home, at work or while travelling, with a textured Black Onyx finish and dishwasher-safe care to support everyday use.

## Images

![S'well Onyx Mug with Handle, 350 ml Stainless Steel Travel Mug — 1](https://www.ofertitastop.com/i/drG2jsC0WbjvxvvndeGO9CKxvd0kjv9RhjYhnlZvCgiChaGxrjuNsnwdqkvpHlIVoNW-pqPAEglWXz_d8HXhzPv-m6xJyc-ONxg0zfJMli0iBo_0salIw_sZwg.jpg)

![S'well Onyx Mug with Handle, 350 ml Stainless Steel Travel Mug — 2](https://www.ofertitastop.com/i/G8r7S33OvURb06Um2n801JA1AFQu0r691PpSEuC_qdIJvCy8a-R0kwWs9Mziqqzls5W4oCIx4i9AFPR_lble_nMTQNENv_hfKKoKcsshYGwWJzt9ZvQN89vXMA.jpg)

![S'well Onyx Mug with Handle, 350 ml Stainless Steel Travel Mug — 3](https://www.ofertitastop.com/i/Qy1HIe3KH6I9LmztEm1YcBHdwb4fSNBEnSRncAIexViDvtkJM8BMIKfPoVXvyY7BAZxEahO8WYQS3NoRhW_07d7KeoPzbXznevghqNtQFeSmsnOjTbQht2TqjQ.jpg)

![S'well Onyx Mug with Handle, 350 ml Stainless Steel Travel Mug — 4](https://www.ofertitastop.com/i/sjazSfxipCFGrn2iBIdd8hOTCfSjA08WZ4awDjHAeiWXX5nCNJD-g4G6az6R7XK3mj8Ldz7SRsKl-3kGeHzR5_1wIrzPkwyb3mR__wdmV9ZcrEiLzGZiDqVx1A.jpg)

![S'well Onyx Mug with Handle, 350 ml Stainless Steel Travel Mug — 5](https://www.ofertitastop.com/i/Df7uuQ-rGTuLCCUFuBWrrXyVULybYbGD9Krmjgo8vXCm4iGDMB5k4sexjZ9ffpJramuVgpE3VsdnVeiiGYDt9HbjlW3WK5cTyDbAJIpvZe0guE0neRHxgRA1JQ.jpg)