Obsessed With This Jacket
"Such a gorgeous jacket! The fit is really flattering and gives a beautiful shape without feeling too tight. The fabric feels soft and high quality, and I love how easy it is to wear to the gym or casually. 🤍"









for all orders over $150 (USD)
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
FREE SHIPPING ON ORDERS OVER $150 USD
Enjoy free standard shipping on all orders with a merchandise subtotal of $150 USD or more. Eligible orders will automatically receive a free shipping option at checkout.
Shipping costs for orders below this threshold are calculated at checkout based on your delivery location and parcel weight.
Duties and taxes are prepaid where available. If included, your selected shipping method will display "Duties & Taxes Prepaid" at checkout.
If this label is not shown, any applicable duties, taxes, or import fees will be payable by the recipient upon delivery.
30-DAY RETURNS
We want you to love your CSB pieces. If something isn't quite right, you can return eligible items within 30 days of delivery for a refund, store credit, or exchange, subject to our return policy.
Refund Eligibility
Please view our full Returns Policy here.

Overall rating: 4.841727 / 5 from 278 reviews.
The Serenity Longline Zip Up Jacket is highly praised for its buttery soft fabric, perfect fit, and flattering design. Customers love its luxurious feel and high-quality material, though some noted the absence of pockets.
Review topics: ["size","fit","fabric","support","waist","length","material","colour","design","feel","look","stretchy","quality","cut","sleeves","wear","shape","jacket","zip","thumb holes","piece","compression","snatches","duper","hugs","set","csb","places","medium","body"].
"Such a gorgeous jacket! The fit is really flattering and gives a beautiful shape without feeling too tight. The fabric feels soft and high quality, and I love how easy it is to wear to the gym or casually. 🤍"
"Ordered this gorgeous jacket mainly for the colour and as soon as I slipped it on and zipped it up I had to go order it in black!! I love the way it hugs my body and makes me feel snug and compliments my shape so nicely ! I’ve brought a medium and it is a little ‘tight’ but I do prefer a nice snug fit."
"This jacket makes you feel so fit! Fits so well and material is so stretchy. Mine did come with a few stains on the sleeves but the customer support was fantastic and helped right away!"
"Love the fit and feel. I took the advice of others and sized up. This worked out well as it's still fitted and does up without being too tight. The fabric is great. Can wear with all my gym outfits throughout the cooler months."
"A flattering and super versatile colour! I feel like this goes so well with any colourful pieces especially pastels! Fits beautifully and I love how warm it is too!"
"Obsessed with this jacket. Hugs you in all the right places. Need one in all the colors. Waiting to see if the brown will be restocked."
"So comfy, true to size, good quality and reasonable price. I’m very happy!"
"Absolutely love this piece! It’s versatile, easy to style, and definitely worth having in more than one color (bought the black version too!"
"A staple piece for any wardrobe. I recommend sizing up if you prefer a more relaxed, less fitted look. I love it!"
"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"