Mainline Discount Codes
Active Coupons for Mainline
Some offers require you to click through to reveal a code, or apply automatically at checkout on the retailer's own site.
10% off Orders Over £200 at Mainline
10% Off
10% Student Discount at Mainline
10% Off
15% off Shorts Orders at Mainline
15% Off
About Mainline Promo Codes & Cashback
Mainline stocks one of the UK’s biggest ranges of men’s designer clothing, with brands including BOSS, adidas Originals, Armani, Ralph Lauren and Versace all in one place. Started as a small Scarborough shop in 2002, it’s grown into a major online menswear destination backed by a knowledgeable customer service team.
Whether you need sizing advice or just want to browse the latest trends, our verified Mainline codes help you shop top brands for less.
How to Save at Mainline
- Apply a Mainline code at checkout for a discount on designer menswear.
- Check for student discounts if you’re eligible, alongside regular sale alerts.
- Contact the customer service team for sizing advice to avoid costly returns.
Following Mainline’s blog and social channels is a good way to catch sale alerts and new brand arrivals as they happen. Getting sizing right first time also saves on return postage, so don’t hesitate to ask the team for guidance.
Mainline FAQs
Which designer brands does Mainline stock?
Mainline stocks brands including BOSS, adidas Originals, Armani, Ralph Lauren and Versace, alongside many other menswear labels.
Can Mainline help with sizing before I order?
Yes, the customer service team is available to advise on sizing and delivery options before you buy.