Derek Lam's headline offer is 25% off dresses, making it the smart choice if you're building a wardrobe around dresses or a mixed basket that includes them. The brand also has deeper discounts available across a wider range of styles, so your best option depends on what you're buying and how much you're spending.
Shopping for dresses. The 25% off dresses sale is your straightforward winner here. It applies to the full dress category, so grab any styles you like and let the discount apply at checkout.
Looking for anything else across the sale section. If you're browsing beyond dresses, the up to 50% off sales styles deal typically beats the dresses offer. Compare what you've found: if your basket is mostly non-dress items on sale, go for the 50% option instead.
Hunting for the deepest possible discount. The Archive Sale delivers up to 70% off selected styles, which is the steepest markdown the brand currently has. This applies to a curated selection of archive pieces rather than the broader sale, so it's worth checking whether your wishlist items qualify. If they do, this deal will save you the most.
First time shopping with Derek Lam. New customers can sign up for the newsletter to receive special offers and promotions, which often includes an immediate discount on your first order. This is worth doing before you shop if you haven't already joined, as it may give you a better starting point than the public sales.
Keep in mind that only one offer applies at checkout, so add your items to your bag, check which discount generates the largest total saving based on what's actually in there, and apply that one. The percentage discounts on the wider sales likely edge out the 25% dresses deal for larger baskets or when you're mixing categories, but if you're focused on dresses specifically, that dedicated offer is hard to beat.