Wasn’t sure I was going to like these … by the time I finished running I was amazed at how comfy they were !

Meet the game-changing Running Slipper, where style meets unstoppable performance. Our revolutionary Wing Fit system wraps your foot in instant comfort, while sustainable materials and women-first design ensure you're ready for anything, from intense cardio sessions to cross-training workouts.
Choosing the right size for you
We recommend you check our size guide and measure your feet for best fit. Many customers find they need to go up half a size for a regular fit and those with a wider fit go up a whole size.

The ENDVR
Width: Regular
Weight: 260g (UK W's 6)
Stability: Neutral
Cushioning: Max/Responsive
Drop Height: 9mm
Stack Height: 35mm/26mm
Every component in your QLVR Running Slipper challenges convention. From our bio-based materials to our women-first design approach, each innovation serves a purpose: to deliver performance footwear that truly understands you.
At QLVR, every curve, every component, every detail serves a purpose. Our design philosophy is simple: create performance footwear that works in perfect harmony with women's biomechanics. No decorative flourishes, no unnecessary elements – just pure, purposeful design that delivers.
Traditional athletic shoes start with men's lasts and scale down. We started fresh, creating a design that's built around the unique triangular shape of women's feet. Higher arches, wider toe boxes, narrower heels – every aspect of female foot anatomy informed our design process.
Working with the world's most innovative materials companies, we've sourced premium sustainable compounds that deliver peak performance. From beans to blooms, every component in your QLVR Running Slipper is thoughtfully selected to minimize environmental impact without compromising on power.
QLVR Footwear runs true to size and based on a regular width fitting (not a wide fitting). Please note that our women's specific shape intentionally delivers a snug 'locked-in' fit around the heel and across the instep.
The QLVR Wing fit system is moulded in a closed 'laced-up' position and thanks to the Pebax material, it will maintain this locked-in feeling throughout wear. Go with your true size to get that snug locked-in feeling or if you prefer a more loose feeling, you could go up a size.
The 'Foot Length' measurements which you can find below relates to the length of your foot from the back of your heel to your longest toe. You don't need to go up a size for 'toe wiggle room' as this is already built in.
How to measure your foot length:
You can wash your QLVR. Just follow the below steps:
If you have any questions, you are always welcome to contact us. We'll get back to you as soon as possible, within 24 hours on weekdays.
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Dynamic movement demands dynamic design. Our bio-based rubber sole features deep forefoot flex grooves that work with your foot's natural motion, supporting quick and explosive movements during cardio workouts. The result? Agile response and confident control through every step, sprint, and landing.

At the heart of your Running Slipper, our full-length Pebax® propulsion plate, derived from castor beans, acts like a springboard for your feet. Sandwiched between layers of cushioning, it returns energy to every push-off, helping you reach new levels of performance.

Our patented Wing Fit system, crafted from bio-based Pebax®, expands and contracts as your foot steps in, providing a secure locked-in fit the second you slip your foot in. One smooth motion locks you in with 360° security and superior rear foot stability, giving you the confidence to push limits without second-guessing your footwear.

Innovation meets control in our unique rocker design. The distinctive profile combines with our Dandelite™ cushioning and midfoot piston technology to keep you stable through squats and lunges. Smooth transitions meet unwavering stability – no compromise needed.

Superior performance starts with superior materials. Our lightweight upper, woven from sustainable eucalyptus fibers, delivers a sock-like fit that moves naturally with your foot. Technical engineering meets everyday comfort, keeping you supported and ventilated through every workout.
Please read our FAQs page to find out more.
We ship QLVR worldwide.
Our patented QLVR wing fit system is designed in a closed ‘laced up’ position, so that once it is on it will instantly give you a secure ‘locked in, laced up’ feeling. The 360 degree zig zag system provides a secure fit all around your foot and yet it can flex to mould to the shape of your foot. The narrower heel design ensures better heel hold to prevent heel slipping and stop your foot from moving back and forth inside the shoe.
So to put the shoe on, you place your foot on the rear of the wing (stepping on the back of your shoes like kids do!) and this opens the shoe for you to step in. Then to remove your foot you step the other foot on the rear kick step (see demo videos) which opens the shoe to remove your foot..
Go with your true size to get that snug locked-in feeling. If you prefer a more loose feeling, or if you like to wear thick socks, go up a size.
As footwear brands’ vary in sizing, we recommend that you measure your foot length following these instructions here.
We know that some athletes prefer a tighter fit for performance days and a more roomy fit for off duty or leisure wear. So we include 2 different thickness insole options in every box so you can select your ideal fit. Our built in insole also offers extra cushioning and the flexibility to wear personalised orthotics.
Yes. You can see the full breakdown of the materials here.
Our goal at QLVR is to build the best performance products but use materials that do the least amount of harm to our environment. With this in mind we are working with innovative companies to utilise their Premium Sustainable Materials and Compounds within our products.
The QLVR Running Slipper is crafted with premium sustainable materials, ensuring a responsible choice. The foam compound is derived from dandelions, providing a lightweight and responsive feel. Our bio based premium rubber sole is made from corn cob waste offering durability and slip resistance. Additionally, we use Pebax® Rnew® bio based polymer made from castor beans to make our QLVR wing and our spring plate, adding a high-performance element to the trainers. QLVRs also feature Tencel yarn, woven from Lyocell fibers derived from sustainably grown eucalyptus wood. These materials not only make the Running Slipper sustainable, but also ensure they are durable, comfortable, and high-performing.