Let’s be honest—finding functional activewear that fits when you’re blessed in the chest department usually means choosing between “squished like a pancake” or “swimming in fabric everywhere except the bust”. Enter the Bonair Athletic Top! Designed with C-H cup sizes in mind, it offers full coverage with carefully placed princess seams that respect your curves while keeping you protected from the sun during all your adventures.
Surf, swim, cycle, tennis—the Bonair is your new go-everywhere companion that doesn’t force you to choose between function and fit. Pair it with our Wickham Shorts & Skirt for the ultimate mix-and-match active set that performs as brilliantly as it looks, or use swim fabric to make it a full-coverage rashguard to keep you protected when you’re surfing or swimming. Because active life is better when your clothes actually fit!
Get the Bonair when you join Cashmerette Club at the All Access level today.

The Bonair is a versatile athletic top and rashguard sewing pattern with princess seams, two lengths, a full zipper with protective shield, and two sleeve options. It comes in sizes 0-32 and cup sizes C-H and it’s exclusively available to Cashmerette Club members.
Not a member yet? Join today at the All Access level and download the Bonair instantly.

Ana is wearing the cropped Bonair with long sleeves in a size 14 C/D made with a polyester terry knit and recycled polyester spandex, paired with the Wickham Skort. Her measurements are 39” high bust (99 cm), 42” full bust (107 cm), 34” waist (86 cm), and 44.5 hip (113 cm), and she is 5’ 4”.

Morgan is wearing the cropped Bonair with short sleeves in a size 20 G/H graded to a 24 waist and 28 hip made with recycled nylon spandex swimsuit fabric and nylon spandex athletic jersey from The Fabric Fairy, paired with the Wickham Shorts. Her measurements are 45” high bust (114 cm), 50” full bust (127 cm), 44.5” waist (113 cm), and 58” hip (147 cm), and she is 5’ 10”.

Carrie is wearing the high hip-length Bonair with long sleeves in a size 8 E/F graded to a 10 waist and 8 hip made with a floral poly spandex swimsuit fabric and gingham poly spandex swimsuit fabric, paired with hacked Marblehead Swimsuit bottoms. Her measurements are 33.5” high bust (85 cm), 37” full bust (94 cm), 31.5” waist (80 cm), and 40 hip (102 cm), and she is 5’ 4”.
Meet the Bonair Athletic Top
Stay active and protected from the sun with the Bonair Athletic Top! The Bonair features:
- Versatile full-coverage athletic top
- Two lengths: mid-hip and cropped
- Underarm panel with princess seams in cup sizes C-H
- Easy to get on and off thanks to full front zipper with protective shield, and top zip cover
- Optional thumbholes to keep sleeves secure
The Bonair is rated intermediate, and you can sew yours with ease thanks to the free video sewalong hosted by Mari of Sew Happy!



Picking fabric for your Bonair
The Bonair is designed for knit fabric with at least 30% stretch across the grain and at least 10% stretch along the grain. Suitable fabrics include swim fabrics, poly/lycra, poly/nylon, jersey, ITY, and Liverpool knits.
Our friends at The Fabric Fairy want to help you find your perfect fabric for your first Bonair with 15% off storewide all month long and exclusively for Club members!



Save 30% on Cashmerette activewear
Sew a swim and activewear collection this summer! Club members get an exclusive code for 30% off our activewear patterns all month long.



Fabric requirements for the Bonair Athletic Top

Finished garment measurements for the Bonair Athletic Top

More from the Club this month
If you have to make multiple adjustments to a pattern it can be really hard to know which to do first, especially as they can all interact. Worry no more! In this month’s masterclass, I’ll take you through simple principles so that you can feel confident knowing what order to make your adjustments.
(Want to master more sewing secrets? Consider joining the Club at the Plus or All Access level to get our entire library of video lessons.)
The Bonair launch is a fantastic time to create a new swimwear capsule (mix and match, anyone?). Join me in this month’s live event to get my tips and tricks for sewing swimwear that looks professional, and stays looking good for years. Mark your calendar for Monday, June 9th at 3pm EDT (12pm PDT, 8pm BST, June 10th @ 5am AEST)!

Let’s make something beautiful
Whether you wear your Bonair Athletic Top swimming, surfing, cycling, or just as a cute little athleisure zip-up, I hope you enjoy it as much as I do! Make sure to use the hashtag #BonairTop so I can see your awesome makes.













