Destira is offering a 20% off sitewide promo code at the top of this page, which is best if you want a straight percentage off most full price items across the store. That 20% code is the headline offer on this page; it cannot be combined with any other offer, so it is the single main code to try first on general purchases.
Small orders under $99: if your cart is below $99 and you are buying regular activewear or accessories, the 20% off sitewide code will reduce your total directly. For example, on a $80 order the 20% code takes $16 off, leaving $64. The 15% off code saves less on the same cart, taking $12 and leaving $68, so use the 20% code. The free shipping threshold of $99 does not apply to these carts.
Orders around the free shipping threshold ($99): if your cart is $99 or just under, consider whether adding one low cost item to reach $99 to get free shipping is cheaper than taking a smaller discount. On a $99 order the 20% code takes $19.80 off, leaving $79.20 and also meets the free shipping threshold, so the 20% code is a strong choice here.
Orders above $99: for most full price purchases above $99 the 20% sitewide code remains the simplest saving because it applies across the site. On a $120 order, for example, the 20% code takes $24 off and leaves $96. The 15% code would take $18 and leave $102, so the 20% code is better for this basket.
Buying two active items or accessories: use the buy one get one 50% off code when you are specifically buying two qualifying activewear or accessory items and the cheaper one will be half price. For example, buying a $60 top and a $40 pair of shorts, the BOGO 50% code charges $60 + $20 = $80, a saving of $20 from the $100 original. The 20% sitewide code cannot be combined with other offers, so you must choose either the BOGO 50% code or the 20% sitewide code; for the $100 pair the 20% code would take $20 off leaving $80, so both codes give the same result in that exact split, but with different item price mixes the BOGO often wins when the second item is significantly cheaper.
First swimwear order: if this is your first swimwear order with Destira, the 20% off your first swimwear code applies to swimwear only and is restricted to first orders. Compare that to the sitewide 20% code; both give 20% but the swimwear code is limited to swimwear and to first orders. Use the swimwear first order code if you are a new customer buying swimwear and any sitewide exclusions or combination restrictions matter.
Buying sale items: sale styles are already reduced up to 30% or up to 40% depending on the listed sale. A sale discount on an item will often beat the sitewide 20% on that same item when the sale percent shown is larger. For example, $150 of sale items at 40% off becomes $90, a $60 saving; the 20% sitewide code would only save $30 on that same $150, and the sitewide code cannot be applied to sale styles if the sale rules or the code terms exclude sale or state offers cannot be combined. Prioritize the higher explicit sale percent on sale styles.
Choosing between the offers: compare the final totals for the same basket. The 20% off sitewide code is the default best choice for most full price carts above small amounts, but use the BOGO 50% code when you are buying two qualifying active or accessory items and that combination gives a lower total. Use the first swimwear 20% code if you are a new customer buying swimwear. Sale prices that are up to 30% or up to 40% off will be better for sale items when their stated percentage yields a lower final price. Note the sitewide 20% code and the 15% code both forbid combination with other offers, so you must pick one code at checkout when terms bar stacking.