First-time TWOTHIRDS shoppers unlock a 15% discount by joining the brand's email newsletter, a higher rate than the 10% delivered by the store's standard public codes. SimplyCodes tracks 3 healthy promo codes for TWOTHIRDS, including 1 community-contributed single-use code, all delivering a reliable 10% storewide discount verified across the last 10 months. U.S. orders cross into free shipping at $200, while anything below carries a $9 flat delivery fee.
First-Time Buyers Earn 15% by Joining the TWOTHIRDS Newsletter
New TWOTHIRDS customers receive 15% off their first order by subscribing to the brand's email newsletter, according to TWOTHIRDS's official site documentation. This exceeds the 10% available through the store's year-round public promo codes, making newsletter signup the stronger entry point for anyone making an initial purchase from the sustainable swimwear and apparel label.
The 15% rate applies specifically to first orders, so it cannot be reused on later purchases. Subscribe at twothirds.com before building your cart, then apply the welcome discount at checkout. For a first purchase sized near the brand's higher-priced organic cotton and swimwear pieces, the 5-percentage-point gap over standard codes compounds meaningfully on the order total.
Returning TWOTHIRDS Shoppers Hold 3 Codes at a Steady 10%
Returning TWOTHIRDS customers who no longer qualify for the first-order newsletter rate can fall back on 3 active promo codes, each confirmed by SimplyCodes tracking to deliver a reliable 10% storewide discount over the past 10 months. That 10-month consistency is the signal worth acting on: the discount rate has not eroded across the tracking window, so the 10% baseline is dependable rather than a one-off promotion.
One of those three is a community-contributed single-use code. Because public TWOTHIRDS codes occasionally fail to apply to a given cart, the single-use option matters as a working backup when the storewide code gets rejected. Pull the current set from SimplyCodes and test the public codes first, then move to the single-use code if needed.
Free Shipping on TWOTHIRDS Orders Clears at $200
TWOTHIRDS waives shipping on U.S. orders above $200; orders under that threshold carry a $9 flat charge, according to the brand's official U.S. terms. For apparel and swimwear where fit uncertainty is high, the shipping math interacts directly with return costs: U.S. returns carry a mandatory $11 customer-paid fee within 30 days of delivery.
That return fee changes the calculus on borderline carts. If a cart sits just below $200, adding a genuinely needed piece to clear the threshold recovers the $9 fee, but padding an order with items likely to be sent back exposes you to the $11 return charge per shipment. Size carefully on swimwear and organic cotton basics before pushing a cart over $200 purely to waive delivery.
Competitors Like Patagonia and prAna Expand Sustainable Apparel Options for TWOTHIRDS Shoppers
Patagonia and prAna target the same ethically minded apparel buyer as TWOTHIRDS, overlapping on organic materials, swimwear, and durable everyday basics at comparable price tiers, and SimplyCodes maps 4,545 competitor codes across this sustainable fashion category. When a TWOTHIRDS cart lacks an active code for the specific items you want, these alternatives surface live promotions on comparable eco-conscious pieces.
The relevance here is specific to how TWOTHIRDS prices: because the brand sits in the premium sustainable tier with a $200 free-shipping bar, cross-shopping Patagonia or prAna often lets a shopper hit a competing brand's own shipping threshold on a single comparable item rather than padding a TWOTHIRDS cart to $200.
