I am xs-s in csb
"I am xs-s in csb pieces, bought this in xs and the fit is just right. I have quite slim arms and small waist otherwise I would size up. Love the quality, doesn’t feel flimsy"












for all orders over $150 AUD
within 30 days (exclusions apply)
A winter wardrobe staple! Our longline zip up jacket contours the waist in buttery soft Serenity fabric. Perfect for layering over your favourite CSB crop to get you through the chilly season
80% Polyester, 20% Elastane
SHIPPING
Orders with a subtotal over $150 AUD will be provided with a free shipping option in checkout. Please know that the cost of shipping is calculated at checkout and based on delivery location and weight.
Parcels being sent outside of Australia may be subject to customs, duties and taxes. Please read more regarding this here.
RETURNS
At CSB, we want you to love your pieces! If something isn’t quite right, you’re welcome to return your order within 30 days of delivery, provided it meets our Return Eligibility Requirements.
Read more on the Returns Policy here

Overall rating: 4.828794 / 5 from 257 reviews.
The Serenity Longline Zip Up Jacket is highly praised for its flattering design, gorgeous color, and high-quality material. Customers appreciate its soft and luxurious feel, perfect fit, and amazing quality. However, there is room for improvement in the zip functionality.
Review topics: ["size","fit","length","colour","fabric","waist","quality","zip","material","look","feel","jacket","shape","design","cut","wear","sleeves","thumb holes","compression","hugs","set","compliments","medium","snatches","duper","piece","csb","body"].
"I am xs-s in csb pieces, bought this in xs and the fit is just right. I have quite slim arms and small waist otherwise I would size up. Love the quality, doesn’t feel flimsy"
"I would definitely size up! I love the color material and quality! would buy agian in all colors!"
"I love this zip!! so stunning and so flattering. The perfect off-white shade. Got so many compliments on it. One thing I will say is it does fit very tight! I would recommend sizing up if you don’t want a super compressed fit. I’m usually a size small and a B cup. I don’t mind the compressive fit so I stuck with a small."
"Gorgeous work out jacket. I have it in all colors and multiple in black. It is just perfect to wear over a sports bra if it is a little chilli outside. You can always wear it open if it is warmer and I even found I can run with this jacket on a cold day. The fit and the length are just the perfect combo to flatter a woman’s body."
"So flattering. I will say size up because it is very very fitted and compressive! I got a small (usually a true small) & I’m a smaller C cup. Still so flattering and I’m in love"
"“The CSB Serenity jacket is super flattering and comfortable 🤍 The fabric feels soft and lightweight while still giving a snatched fit. Perfect for Pilates, errands, or everyday athleisure wear."
"Confusing sizing. I have this in medium in black and a large in buttercream. While the black is flattering, it just feels too fitted. I am surprised that the large fits exactly like the medium."
"Excellent quality! Fits so well. Love how versatile this jacket is. I would say that it fits smaller. Initially I ordered a XS (my usual size) but I had to exchange it a size Small."
"Wow this is so beautiful colour and quality :u1F90C|type_2:❤️❤️lovee"
"Fits so good really good Jacket material so soft i love it😊😊"