Copy the code and paste it during checkout
This website contains affiliate links.
Newborn essentials bundle - 7-piece set for £29.90
A curated starter pack containing bodysuits, sleepsuits, and a hat designed for babies aged 0-3 months. Buying the items individually would cost noticeably more, making this a practical option if you're kitting out a nursery or buying a gift for new parents.
Up to 50% off outerwear and jackets
Winter coats, padded jackets, and rainproof shells for children are currently marked down in the outerwear section. Sizes range from toddler through to pre-teen, though the deepest discounts tend to be on end-of-season lines where remaining stock is limited.
Buy 3 t-shirts for £15 across selected styles
A dedicated multi-buy page groups together qualifying cotton t-shirts for babies and older children. The fixed price kicks in automatically once three eligible items are in your basket - no code required - and you can swap individual pieces in and out until the threshold is met.
Gift cards from £10 for baby and kids clothing
Digital gift vouchers start at ten pounds and can be loaded up to higher values for birthdays or new-born gifts. The recipient applies the voucher code at checkout and any remaining balance stays on the card for future purchases.
Download the app for exclusive mobile-only offers
Installing the Original Marines app unlocks promotions that aren't visible on the desktop site, including early access to seasonal sales and occasional flash discounts on specific product lines. Available for both iOS and Android devices.
Free standard delivery on orders over £40
Spend at least forty pounds in a single transaction and standard UK shipping is waived with no promo code needed. Orders below that threshold incur a flat delivery fee, so topping up with a pair of socks or an accessory can sometimes work out cheaper overall.
3 for 2 on selected children's pyjamas
Add three qualifying pyjama sets to your basket and the cheapest one is automatically deducted at checkout. Nightwear from both the baby and junior ranges is included, so you can mix sizes across different age groups in a single transaction.
New season arrivals from £6.90
Fresh drops of children's everyday basics start at under seven pounds, covering everything from cotton t-shirts to leggings. These are full-price items rather than sale goods, giving you access to current-season designs before they hit any promotions.
Outlet section with up to 80% off children's clothing
The dedicated outlet page features end-of-line garments for babies and kids at heavily reduced prices. Stock changes frequently and popular sizes sell through quickly, so it's worth checking back regularly rather than waiting for a specific item.
10% off your first order with newsletter signup
Register your email address on the Original Marines website and you'll receive a welcome discount to use on your maiden purchase. The voucher lands in your inbox shortly after confirming your subscription, so check spam folders if it doesn't appear right away.
Free delivery on orders over £128
Enjoy free standard shipping when your order total exceeds £128. Stock up on children's clothing and save on delivery.
Up to 70% off Spring and Summer childrenswear sale
Save up to 70% on selected Spring and Summer collection items for babies and kids. Shop now whilst sizes last.
Discover current promotions at Original Marines
Original Marines offers a range of products and services. Visit their website for current deals.