The 20% off promo code at the top of this page is the lead offer from Duffield Lane. It gives you an extra 20% off selected fashion across the current collection and is best if the items you want are in the code eligible range and not already in the sale. If the pieces are marked as sale styles, the automatic sale discounts such as up to 70% off may save you more.
Small carts under $150, full price selected styles If your cart totals $120 of non sale items that are eligible for the code, use the 20% off promo code at the top of this page, which takes 20% off those items. For example on a $120 order, the 20% off code reduces the price by 20% to $96, a $24 saving. This is the right choice when the items are not in the sale and are listed as code eligible.
Small carts of sale items If the items you want are on the sale pages, the sale discount applies automatically at checkout. Use the specific sale price shown for that item rather than the code. For a $120 order of sale styles reduced by 30% in the sale, the automatic 30% off takes the price to $84, a $36 saving, so the sale wins where those items are eligible for the larger sale discount.
Mixed carts with sale and code eligible items Sale discounts apply to sale styles and the 20% code applies to selected non sale items. If your cart mixes both, the checkout will apply sale prices to sale items and you can use the code only on items marked eligible. Compare the final totals in your cart to pick the lower amount; calculate sale reductions on sale items first, then the code on remaining eligible items.
Big carts and free shipping If your order is $150 or more you qualify for free shipping, so aim for that threshold if shipping matters. The free shipping offer requires an order of $150, but the terms do not say whether that threshold is measured before or after a promo code, so plan both ways. For example a $160 order reduced by the 20% code becomes $128 after the discount; you would still have met a $150 pre discount threshold but may not meet a $150 post discount threshold depending on the site rules.
Our records show Duffield Lane ran 19 offers in the 12 months to October 2026 (9 codes, 8 sales and 2 delivery offers). The biggest percentage code in that period was 30% off and the typical code was 25% off, while the biggest sale was up to 70% off. Our team carried out 9 checkout tests across 9 offers in the 12 months to October 2026, with 8 of those tests kept as screenshots.
When choosing, compare the same cart totals after each discount and take whichever leaves the lower final price. Use the 20% off promo code at the top of this page if your items are code eligible and not already in the sale; if the items are marked as sale styles, let the automatic sale discount apply and use that lower total. There is no listed rule that these offers combine, so treat sale prices and the code separately and pick the cheaper checkout total.
