Nautica: Extra 50% off ALL Outwear + Additional 20% off

Uh... Yes it does. I tried it on the Reversible Colorblock Bomber Jacket and Long Puffer Coat.
They're $180 and $199 respectively. When you add it to the cart without the WELCOME20 promo code, you see the 50% off. Once you add the WELCOME20 code, the price in the Total column for each jacket changes to seem like you don't receive the 50% off; however, if you look at the Estimated Total, it includes the 50% off as well as the additional 20% off.

180 x (0.50) = 90 x (0.80) = 72
199 x (0.50) = 99.50 x (0.80 = 79.60
72 + 79.60 = 151.60

Merchandise Subtotal: $ 227.40

Applied for 20% off
(see promotion details) -$75.80

Estimated Total: $151.60

Stacking 50% & 20% also worked for me. I added a $280 topcoat and the total came $112 after both discounts.

well, it's working on the first order, but then when you go back, you won't be able get 50% off on anyhting else. i dunno, it might be a mistake.

I'm not sure Acarone. I didn't place an order but I went pretty far into the checkout stages to make sure it worked in the first place. All I know is that the 20% code makes it LOOK LIKE the 50% isn't applied when you look at the item's Total Column section but the total ends up being correct (including both the 50% discount and the 20%). I'm not sure if it changes the second time around. Maybe try using a different browser or clearing your cookies?