2 Essential Duos For €360
Get these two essential Theory outfits for only €360, perfect for any occasion.
Terms and conditions
- Need to add styles at cart.
- Valid on selected products only.
- For full Terms & Conditions, please visit Theory’s website.
Theory Discount Codes
3 active offers
Active Theory Ireland Promo, Discount and Voucher Codes for September 2026
Women's Blazers Under €525
Shop Theory's tailored women's blazers, expertly crafted for polished style and versatility under €525.
Terms and conditions
- While stocks lasts.
- See the Theory's website for full terms and conditions.
Gift Card From €50 at Theory
Give the gift of style with a Theory gift card, available from €50, and let them choose their perfect wardrobe staples.
Terms and conditions
- Limited time only.
- Cannot be used in conjunction with any other offers.
- For full Terms & Conditions please see Theory website.
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How do I use my Theory promo code?
- Copy a code from Love Vouchers and follow the link to the Theory website
- Here you can begin shopping and add any products you want to your bag
- Once you’re finished you can checkout
- You’ll then be taken to the shopping bag page where you can paste your code to apply the discount
- Add your Promo/Voucher/Coupon Code to the box labeled "Promo Code" and click ‘Apply Code’
- You can then ‘checkout’ and continue with the payment process
Theory Money-Saving Hints & Tips
Here are some great tips & tricks for extra savings at Theory:
- Always visit and check Love Vouchers for the latest money-saving discount codes and deals at Theory before you finish your purchase
- Join the Theory newsletter to get the best offers, money-saving promotions and exclusive deals sent straight to your inbox
- Be sure to check out the sale offers and discount section on the Theory website for the latest promotions and discount offers
- Follow Theory on social media to stay updated with their new arrivals and offers.
- Download the Theory app store for free, activate push notifications, and get the latest promotional offers directly to your mobile phone.
- Sign up to Love Vouchers newsletter for our latest weekly offers for brands like Theory and many more.
Theory FAQs
What payment method do you accept?
Theory accepts VISA, Mastercard, American Express, Discover Card, Apple Pay, Klarna, UnionPay, Alipay, and PayPal.
Where does Theory deliver?
Please click on the flag icon at the top of the Theory homepage to view the countries that they ship to.
Can I change my order?
Once an order is placed, they are unable to modify or change the address. If within policy, they can attempt cancellation (see above). Please note that they do not guarantee the modification of any order. All purchases should be reviewed carefully before being submitted.
Can I cancel my order?
If placed during Monday-Friday for Theory’s business hours of 8 a.m.–7 p.m. ET, they can attempt to cancel domestic orders within 1 hour. Please call Theory Client Service at 877.242.3317 immediately. They do not guarantee the cancellation of any order. Please note that they are unable to cancel international orders.
What is the return policy for Theory?
Theory will accept return merchandise in its original and unused condition, provided that all tags are attached and accompanied by an original receipt within 30 days of purchase. Gifts purchased on Theory may only be returned for store credit or exchanged within 60 days of the original purchase.
Theory Contact Details
Phone +1 877 242-3317
