These are our signature mid-thigh black biker shorts—but with the classic Mama Movement flair! These are the biker shorts for those who are a Rainbow at Heart. You’ll find a subtle yet playful Rainbow Love Heart on the left hip and a bright yellow inner waistband featuring the uplifting message “Undercover Dopamine Dresser”, adding secret pops of colour to your look—even when you need to wear black.
Meet the Shortie Bike Shorts – the fun little sister to our signature Everyday Bike Shorts! With a 6-inch inseam, these mid-thigh bike shorts are perfect for petite frames, runners, cross-fitters, or anyone looking for a versatile under-dress option. Featuring everything you love about our Everyday Bike Shorts – extra-high waist, compression support, and deep side pockets – these shorts offer a buttery soft feel, squat-proof confidence, and a luxurious, silky finish.
Key Features
- Extra high-waisted for ultimate comfort and support.
- Sleek, stretchy, compressive, and squat-proof.
- Quick drying and sweat-wicking for cool comfort during exercise.
- 6-Inch Inseam:Mid-thigh length for versatile wear.
- Sustainably made from recycled PET for an eco-conscious choice.
- Deep side pockets for your phone, keys, and other essentials.
- Rainbow Love Heart on the left hip, embodying body diversity and self-love.
- Bright yellow inner waistband with the fun message “Undercover Dopamine Dresser”.
- Chlorine-Resistant: Durable fabric designed to withstand chlorine exposure.
Fabric Composition
Crafted from our signature Everyday fabric, a premium, high performance recycled PET/Spandex mix that has a supportive compressive hold that is so comfortable you’ll want to wear it – every day! Buttery soft and lightweight with four-way stretch and moisture-wicking properties. You would never believe that these are made out of recycled plastic bottles!
Model Information
- Faye wears a size S. She is 160cm and usually wears an AU10 bottom.
- Tahlia wears a size XL. She is 155cm and usually wears an AU16 bottom.
Care Instructions
We aim to make it EASY for you to care for your activewear. Just cold machine wash, line dry, no ironing required.
Our pieces are chlorine-resistant, making them ideal for water-based activities. To keep the colours bright for longer, we recommend rinsing them in fresh water after exposure to chlorine.
Read garment labels for further information.
These bike shorts are perfect for those who need versatility but don’t want to sacrifice their colourful spirit.











Barb –
The Mamma Movement shorts are a runner’s dream — lightweight, supportive, and designed to move with you. The fit is sleek and secure, with no riding up, and the fabric feels soft yet strong km after km. Ethically made and sustainably sourced, which is very important to me and they deliver performance with purpose. Perfect for every run.
Samantha –
I love the length of these shorter bike shorts!!! They don’t fade, they don’t loose their shape, don’t lose their colour….great quality!!! Definitely buying more
Samantha –
I’ve tried soooo many bike shorts and tights but most either roll down or just aren’t high enough for my ‘post 5 babies belly’. Yes they are expensive but you pay for what you get!!! Love the handy pockets on both sides and the funky colours. I’ve had 1 pair for over 12 months and they haven’t missed a beat, no fading or stitching coming undone.
Lee –
I thought that the shortie shorts would be too short for me and I’ve been really worried to get them, but they are actually great and my soft inner legs don’t hang out at all. They’re really comfy and this print is amazing. I’m a size 12 and I got a M
Madeleine –
Love these shortie shorts, they fit my shortie legs perfectly
Jodie –
I cannot explain how much I love these. So much I bought a second pair… Then a 3rd ????. I wear them constantly. Work, gym, swim, play, lounge. They are THAT comfy, I even sometimes sleep in them! The perfect length and a super cute design. I cannot fault these!! Thank you ladies for making the best shortie shorts ever!!
Kirstine –
I’m a color girl but some plain black tights are always handy! I love the little heart but I hadn’t realized that the inside has a yellow band with writing on it. “Undercover dopamine dresser” I love them! Comfy and cute
Serena –
Fantastic fit and gorgeous colours. My new go-to. Love the length, perfect for us short gals!