If you're after a thrifty option, your best bet is this Jeremiah Shacket. It's a fantastic product, while not very costly. In this price range, you can also take a look at this Topman Shirt Jacket. It's also a popular item and won't break the bank. You might also want to consider this Prana Shirt Jacket. The price is very reasonable, but the effect on your wardrobe will be pretty fantastic.
If you're looking for an item in the middle of the price range, look no further than this rag & bone Shacket. This item doesn't cost the earth, but absolutely deserves a spot in your wardrobe. You might also be interested in this A.P.C. Shirt Jacket. It's an attractive option both price and quality-wise. And do check out this TOMORROWLAND Shirt Jacket! It's a very popular item and good value for money.