Gym King Discount Codes - January 2025

Gym King was launched in 2015, and has grown to be one of the most popular activewear retailers in the UK. Striving for excellence, the company sells a range of gym gear including hoodies, tracksuits, t-shirts and shorts which are created with high quality materials to help you reach your fitness goals.

Now you can shop for a fraction of the price with our Gym King discount codes. Unlike other voucher platforms, we hand-test each one to ensure our users get the best savings.

Gym King Savings in Three Steps

1. Sign up for the Gym King newsletter

Let’s kick off with the easiest step – signing up for the Gym King newsletter. When you land on the site, a pop-up will appear offering 15% off your first order. All you have to do is register your email and phone number (no spam, we promise). 

You’ll get a message asking you to reply with a simple "Y" – think of it like texting a friend! After that, your Gym King discount code will be sent straight to your inbox. Enjoy!

2. Move onto the Gym King sale

Now that you’ve got your new customer promo code, it’s time to go shopping! We suggest diving straight into the Gym King sale section – open all year round. Expect last season’s top picks and low-in-stock pieces with up to 70% off. Think tracksuits, joggers and t-shirts – everything you need for a wardrobe refresh.

Of course, like other online retailers, the Gym King UK participates has some much-anticipated seasonal promotions, like Black Friday and January sales, where discounts can reach up to 60% off sitewide. So mark your calendar and get set to snap up some end-of-year bargains!

3. Apply a Gym King discount code

So, you’ve filled your basket with your fitness essentials, now it’s time to apply a Gym King discount code. This is where the magic happens – an extra 10% off code? Yes, please! This means you could save up to 70% during sale periods (yes, you read that right!)

But don’t worry, you don’t have to wait. Gym King discount codes are available year round, ranging from 10% to 30%. So remember to check our Vouchers4Real page before you checkout!

Gym King UK – 2025 Essentials 

Gym King men’s must-haves 

Whether you’re working out or relaxing at home, Gym King’s got you covered (literally). Check out our favourite Gym King staples for any wardrobe: 

Tracksuits 

Let’s be honest – a Gym King tracksuit is more than just ‘loungewear’. It’s ideal for throwing on to go to and from the gym, but it can also be worn for… just about anything! Whether you prefer classic black or enjoy making a statement with bolder colour combos, Gym King’s tracksuits will have you feeling your best for any occasion.

T-shirts 

Layering – a classic style staple. What to do on those “what do I wear?” days… a Gym King t-shirt, of course! Whether it’s a timeless jersey tee or a high-tech, sweat-wicking option, there are options for everyday – gym day included.

Jackets 

Keep warm and stylish with no compromises. Gym King jackets keep you prepared for the good old (unpredictable!) British weather! Bestsellers include the Heat Sealed Tech gilet and the Eclipse Quarter Zip which are both ideal for milder days. Whilst the Elevate Puffer Jacket will have you feeling warmer than a warm cuppa on a frosty morning!

Gym King women’s staples

Ladies, Gym King UK has all your workout and lounge essentials sorted. From buttery-soft hoodies to figure-hugging leggings, here’s our low-down on this year’s must-haves:

Hoodies and sweatshirts 

The sought-after Gym King hoodie is perfect for everything from workouts to working from home. With an extra-comfy, oversized fit and cosy materials, putting it on couldn’t be easier – taking it off? Not so much! The Reset Oversized Fleece and the GKW Sports Luxe Hoodie are timeless pieces that will carry you through all seasons.

Leggings and shorts 

Gym King leggings are often sold out for a reason. Sculpting, flexible and available in every colour, they are perfect for yoga, running and that all-important coffee run (because, priorities)! More of a shorts person? No problem! How about a versatile pair of cycling shorts? Or fleece shorts for some added warmth without overheating? Designed for all shapes and sizes, Gym King shorts make ‘feeling comfortable’ look better than ever.

Coats 

When it comes to outerwear, Gym King coats don’t mess around. Each style combines style with functionality and comfort, along with heat and style. Hate feeling the chill? The Chevron Longline Puffer is like your personal heater in jacket form. Or if you prefer something that is lightweight yet snug, the Align 2 in 1 Crop Puffer is for you. With a Gym King jacket, you’ll be ready for whatever the weather has in store!