Stunning colour, great fit
"Chilli is the perfect spicy red! I love a colourful active wear set and this colour way compliments me so well. The serenity shorts are the perfect design in length, fit and compression for me!"







for all orders over $150 AUD
within 30 days (exclusions apply)
A stand out in both design and impact, our 4 inch active shorts are built to elevate and support your training and lifestyle.
- No front seam
- High-waisted
- 4” inseam length
- Hidden pocket in waistband
- Serenity fabric
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 our shipping policies 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
Complete the look

Overall rating: 4.795442 / 5 from 1799 reviews.
Serenity Shorts 4" in Black are highly praised for their beautiful color, perfect length, and flattering fit. Customers appreciate the soft, buttery fabric and the high-quality construction, which includes a hidden waistband pocket and no front seam for added comfort.
Review topics: ["size","fit","feel","issues","length","shape","look","colour","fabric","material","quality","shipping","weight","movement","style","pants","stretch","pockets","finish","pair","design","cut","shade","leggings","waist","comfy","band","shorts","width","coverage"].
"Chilli is the perfect spicy red! I love a colourful active wear set and this colour way compliments me so well. The serenity shorts are the perfect design in length, fit and compression for me!"
"I am 5’1, 114 lbs, 26-inch waist, usually size small, US 2 for reference. However, I would have felt more comfortable in size M in the Serenity Shorts 4” because I need more room at the waist. The size S shorts were very unflattering around my waist. I agree with many others that all CSB bike shorts run small. I highly recommend sizing up one size."
"The fit of the material is super flattering and supporting. Wore it to gym, pilates, yoga. Only downside is the shorts runs up a little but not too much till its all the way rolled up."
"Look good, feel good, and are nice! size medium for 5‘ 11“ 4“ for just fine a little small but manageable."
"Just being sad that it’s peeling off every time I laundered. It might have been keeping the quality if I had done it with my hands"
"Surprisingly my favorite now! I fell in love w this color only after getting these shorts and tops in the same color"
"I LOVE Serenity Fabric. I have these shorts in black, brown and the burgundy and they last me so long and I get so many compliments on them. Highly highly recommend. Only giving 4 stars because my black ones have lost their elastic and stretched a lot, but my burgundy and brown ones remain perfect."
"I have socks cut in all colors of this pants model"
"Super cute and good quality but size up just because of the fact it snatches you"
"This tank is such a good basic to have in your closet. the espresso colourway is so trendy and the finish feels so nice"