Honestly THE BEST SWEATPANTS! I’m
"Honestly THE BEST SWEATPANTS! I’m petite an thought it would be too long but it was perfect length with my Uggs and shoes! I felt so cute and the fit is beyond flattering. Many complements thus far!"








for all orders over $150 (USD)
within 30 days (exclusions apply)
The perfect sweatpants made from our premium Organic Cotton for your rest days. Pair back with the Cropped Zip Hoodie for a matching set.
- Wide leg silhouette
- Elastic waistband with drawcord
- Side seam pockets
- Full length
- Embroidered ‘Isabelle Mathers’ Signature
- Made from Organic Cotton
Please note: Our new IM Sweats are designed extra oversized - for a more refined yet slouchy silhouette, our styling team recommends sizing down from your usual size.
100% Organic Cotton
Please view full returns policy here.
FREE SHIPPING for all orders over $150 (USD)
Orders with a subtotal over $150 USD 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.
FREE RETURNS AVAILABLE
CSB offers free returns to Australia and International customers for store credit and exchange within 30 days of delivery for selected countries. First time customers will be eligible for a refund on their first purchase only which is subject to a return fee calculated at time of return. Please note, final sale items are not included in this policy and are unable to be returned.
Click here to see more information regarding returns.

Overall rating: 4.6216216 / 5 from 74 reviews.
Wide Leg Sweatpants in Deep Navy are crafted from premium Organic Cotton, offering a soft, comfortable, and high-quality feel. Customers love the beautiful color and the oversized, slouchy silhouette. The elastic waistband with a drawcord and side seam pockets add to the comfort and functionality.
Review topics: ["size","fit","length","colour","waist","material","quality","pants","fabric","look","leggings","sweatpants","rise","cotton","csb"].
"Honestly THE BEST SWEATPANTS! I’m petite an thought it would be too long but it was perfect length with my Uggs and shoes! I felt so cute and the fit is beyond flattering. Many complements thus far!"
"So cute!! Absolutely love the milk color. Definitely oversized so you could size down one or even two sizes"
"The navy is super soft and washes well. Fabric is a bit thick and heavy, but very cute. XS isn't too oversized."
"The fit is so much better now! Last time I ordered they were too big and a bit short and now it’s the best fit plus the color and fabric are fantastic."
"These sweats are the perfect length with shoes on and they don’t drag, I’m 5’4” for reference. They are so thick and comfortable. I love them and wear them all the time."
"This is my favorite pants now!"
"The quality is amazing. Love the oversized. I'm a M in most bottoms at CSB cause my hips and butt are large but I got a S and it was perfect. Thought the M would be toooo baggy. I'm 5'1 it's not overly long. I wanna wear these everywhere need more colors"
"Love the length and the shape of the legs and that they’re organic cotton. I could use a small but the medium fit as well. I just wish the rise was a bit shorter because if I wear them low on the hips they give the saggy butt look but otherwise amazing and comfortable."
"Cute pants! Soft fabric, trendy fit, perfect for casual outings."
"Love these but size down!! I am usually a small but they fit like a medium"