Gym King Discount Codes & Deals for February 2026

1. Find a Gym King promo code here on NetVoucherCodes and click Copy Code.
2. Head over to the Gym King website and add your items to your basket.
3. When you’re ready, go to checkout.
4. Paste your code into the discount/promo code box.
5. Click Apply and make sure the savings appear on your order total.
6. Complete checkout as normal.
7. If your code doesn’t work, double-check that the items aren’t excluded (sale lines sometimes can be), you’ve met any minimum spend, or you’re not trying to stack multiple discounts.

Gym King is one of those brands I can always rely on when I want gymwear that I can wear every day, too, without feeling like I’m about to do a workout. In the past, I’ve picked up hoodies and joggers that I end up wearing far more casually than I expected.

For example, I bought one of their oversized hoodies during a sale for around £30 instead of the usual £50+ price, and it’s become a go-to staple of mine. The same goes for their Reset Straight Leg Joggers - they’re comfortable enough for training but still smart enough to wear day-to-day, which makes them feel like a good value for the price!

I’ve always managed to avoid paying full price, too. I’ve used the 15% first-order discount before when buying a matching tracksuit set, and I’ve picked up leggings, vests and t-shirts for under £20 in their seasonal sales. The Gym King Rewards loyalty club is another great bonus! The points build up quickly if you shop there more than once, and it feels like you’re getting a little extra back each time.

I’ve also used the student discount in the past, which helped bring down the cost of full-price items when I didn’t want to wait for a sale. And before I check out, I always have a quick look at NetVoucherCodes to see if there’s a Gym King promo code live - or whether stacking a sale item with free delivery over £75 works out cheaper overall.

Get 15% Off Your First Order When You Sign Up

If it’s your first time shopping, this is honestly the easiest way to grab a deal!

• Sign up for Gym King emails before placing your order to unlock 15% off your first purchase.
• When I first signed up, I saved this discount for when I was buying a matching tracksuit as I knew I’d get a better saving.
• It’s especially useful when buying from the new-in range, as they rarely go on sale straight away.

Save Up to 70% in the Gym King Sale

The sale section is always my first stop before browsing full-price items!

• Here, you’ll find discounts regularly reach 50%-70% off, especially on older colourways or seasonal releases.
• I’ve picked up basic tees and shorts here for under £20, which is often cheaper than waiting for a separate discount code.
• I also recommend sorting by ‘price low to high’ as the quickest way to spot hidden bargains.

Earn Rewards Through the Gym King Loyalty Club

If you shop here more than once, the rewards programme is worth using.

• You earn points for purchases, which can be turned into money-off rewards later.
• There are also bonus ways to earn points, like signing up or referring friends.
• I like using reward vouchers alongside sale items to stack savings without needing a promo code.

Save on Delivery With Free Shipping Over £75

Delivery is one of those costs that’s easy to avoid.

• Gym King offers free UK delivery when you spend over £75.
• If I’m close to the threshold, I’ll usually add something small like socks or a T-Shirt rather than paying for delivery - it often works out better value.
• This is especially useful when buying tracksuit sets or multiple items at once.

Use the Refer a Friend Scheme for Extra Credit

This one is easy to overlook, but it works well if you know someone else who shops Gym King.

• Share your referral link with a friend.
• They receive a discount on their first order.
• You get rewards once your purchase goes through, which you can use towards your next shop.

Take Advantage of Student, Youth or Keyworker Discounts

These savings are available even when items aren’t on sale, which makes them really useful.

• 15% student discount available through UNiDAYS and Student Beans after verifying your status. I’ve found this is best used on new releases or popular pieces that rarely get discounted.
• NHS & Keyworker discount is available via secure verification through GoCertify, giving eligible workers access to exclusive savings.
• Youth discount is also available for younger shoppers - worth checking eligibility before checkout because it applies across much of the site.