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All our sizes are listed in Australian sizing, unless you're in the US, where sizing is displayed in US sizes. You’ll find a helpful conversion chart just below to make things easier, no matter where you're shopping from.
Our sizing is generally generous, but as we work with a range of amazing creators, there can be slight differences between styles. The best way to find your fit? Compare our garment measurements with something in your wardrobe that you already love.
Still unsure? Check out the reviews below – our community often shares helpful tips on fit!
And if you need a hand, our friendly customer care team is just a tap away via live chat.
* All measurements are guides only. From time to time some people might find that their perfect size does not line up with the size chart data.
| Size | Length | 1/2 Bust | 1/2 Sleeve Opening | 1/2 Hem |
| 6 | 75cm | 83cm | 16.5cm | 73.5cm |
| 8 | 75.5cm | 83.5cm | 17.5cm | 76cm |
| 10 | 76cm | 84cm | 18.5cm | 78.5cm |
| 12 | 76.5cm | 85cm | 19cm | 81cm |
| 14 | 77.5cm | 85.5cm | 20cm | 83.5cm |
| 16 | 78cm | 86cm | 20.5cm | 86cm |
| 18 | 78.5cm | 86.5cm | 21.5cm | 88.5cm |
| 20 | 79cm | 87cm | 22cm | 91.5cm |
| 22 | 80cm | 88cm | 23cm | 94.5cm |
| 24 | 80.5cm | 88.5cm | 24cm | 97.5cm |
| 26 | 81cm | 89cm | 25cm | 100.5cm |
| 28 | 81.5cm | 89.5cm | 26cm | 103.5cm |
| 30 | 82cm | 90cm | 27cm | 106.5cm |
| AU / NZ / UK | USA | Europe |
| 6 | 2 | 34 |
| 8 | 4 | 36 |
| 10 | 6 | 38 |
| 12 | 8 | 40 |
| 14 | 10 | 42 |
| 16 | 12 | 44 |
| 18 | 14 | 46 |
| 20 | 16 | 48 |
| 22 | 18 | 50 |
| 24 | 20 | 52 |
| 26 | 22 | 54 |
| 28 | 24 | 56 |
| 30 | 26 | 58 |
* All measurements are guides only. From time to time some people might find that their perfect size does not line up with the size chart data.
| Size | Length | 1/2 Bust | 1/2 Sleeve Opening | 1/2 Hem |
| 6 | 29.5in | 33in | 6.5in | 29in |
| 8 | 30in | 33in | 7in | 30in |
| 10 | 30in | 33in | 7in | 31in |
| 12 | 30in | 33.5in | 7.5in | 32in |
| 14 | 30.5in | 34in | 8in | 33in |
| 16 | 31in | 34in | 8in | 34in |
| 18 | 31in | 34in | 8.5in | 35in |
| 20 | 31in | 34in | 9in | 36in |
| 22 | 31.5in | 35in | 9in | 37in |
| 24 | 32in | 35in | 9.5in | 38.5in |
| 26 | 32in | 35in | 10in | 40in |
| 28 | 32in | 35in | 10in | 41in |
| 30 | 32in | 35.5in | 11in | 42in |
| AU / NZ / UK | USA | Europe |
| 6 | 2 | 34 |
| 8 | 4 | 36 |
| 10 | 6 | 38 |
| 12 | 8 | 40 |
| 14 | 10 | 42 |
| 16 | 12 | 44 |
| 18 | 14 | 46 |
| 20 | 16 | 48 |
| 22 | 18 | 50 |
| 24 | 20 | 52 |
| 26 | 22 | 54 |
| 28 | 24 | 56 |
| 30 | 26 | 58 |
Overall rating: 4.9159293 / 5 from 226 reviews.
The Tammin Shirt in Instinct is praised for its flattering cut, comfortable fit, and soft fabric. Customers appreciate the longer sleeves and collar for sun coverage, and the vibrant colors and lovely print. The great length and overall design also receive high compliments.
Review topics: ["size","fit","fabric","colours","length","material","style","shirt","design","weight","feel","wear","looks","quality","cut","print","sleeves","pattern","buttons","top","coverage","arms","fun","poppy","collar","animals","products","piece","comments","flowy"].
"I am a lover of the Tammin shirt. I’m a size 14/16 and i got this shirt on sale in a size 8. I usually buy a size 12 of this cut when im a full size 16/18. Since losing a bit, i got this in the sale and it still is lovely and loose. The print is gorgeous so don’t be afraid to size down in these shirts if the armhole sizing isn’t an issue."
"My hands-down favourite shirt style ever! Love everything about Tammins, from the bum covering longer back to the detail on the sleeves. . . real quality features. The Itsy Bitsy print is fun and pretty and the fabric weight is perfect."
"Love the prin lt and can't wait to wear it with matching Gina pants, its also going to be perfect for summer with denim shorts, so nice to have a well fitting shirt in light fabric and such a fun print 💜❤️💚"
"My fave shirt style + a gorgeous print. . . I have to admit this is my second purchase of this combo (to put aside for potential weight loss, LOL). The Tammin style really suits my look. . . the cut is perfect. Colours in the Neon Cactus print are simply stunning."
"Surprise. . . another Tammin, LOL. Open with a tank or buttoned, coordinated with matching bottoms or paired with jeans, they're my go-to shirt. Best ever length! The Gumnuts print has been one of my favorites. . . fun and fabulous."
"This shirt is gorgeous. I just love the colours, style and fit. Many people commented on how lovely it was."
"This shirt is a beautiful and comfortable to wear. It is bright, breezy and a lovely fit. If you are looking for compliments then you will receive plenty wearing this!"
"I have received so many complements when wearing this shirt. People like the fit and the colours of the shirt. The fabric feels lovely on. Favourite buy."
"Loose fit, absolutely beautiful pattern. Dopamine dressing at its best"
"Still on a mission to own every Tammin Shirt ;-) It suits my shape perfectly. . . love the bum-covering back length, the generous sleeve and the collar style. Fabric is gorgeous. . . just the right weight. Kasey's Iris print is fun, and easy to coordinate."
