Sustainable Activewear UK

Sustainable Activewear UK

Our founder Lucy realised she wasn't alone in wanting high quality sustainable activewear uk that actually fit.

My mantra: No flared, rolled up ankles or baggy knees compromises!

Fed-up of having to make do with the products on the high street, I decided to take matters into my own hands and design leggings that fit properly. After exploring different designs and fabrics, I finally created something that exceeded my initial expectations. Receiving compliments from family, friends and strangers made me realise that this was a wide-spread issue, and so Lacuna was born! 

Our Values

Real bodies, real shapes
Our bodies are all different, and at Lacuna we embrace that. Our designs are created for everyone, especially those who are often not served by mainstream brands. 


All Lacuna products are designed and rigorously tested to be fit-for-purpose. Whether that be fabric choice or extra features such as pockets, your needs are always our main consideration.

High quality

From design to material and the finished product; everything that we sell here at Lacuna is of the highest quality. 


All Lacuna products are delivered through your letterbox in our custom cardboard packaging and biodegradable cover. We also offer a recycling service where we will recycle your old leggings for you! 
Sustainable Activewear UK

Purposefully designed for petite women 5'3 and under, these leggings will revolutionise your wardrobe! 

  • Perfectly proportioned for petite frames
  • No baggy ankles or need to fold
  • 100% squatproof and will not go see-through
  • High waisted and flattering
  • Designed in London, sustainably produced

Designed out of frustration, produced for your satisfaction.

The bits you need to know:

  • Model is 5'3, UK 8-10 wearing a size S
  • 25" inseam
  • Silky smooth, 4-way stretch fabric
  • 75% Recyclable Nylon 25% Elastane

Sustainable Activewear in the UK are Leggings and also refer to several types of leg coverings. Modern usage from the 1960s has come to refer to elastic close-fitting garments worn over the legs typically by women, such as leg warmers or tights. Usage from the 18th century refers to men's wear, usually made of cloth or leather that is wrapped around the leg down to the ankle. In the 19th century, leggings usually referred to infants' leg clothing that were matched with a jacket, as well as leg-wrappings made of leather or wool and worn by soldiers and trappers.