Luisa Kahlfeldt is a product designer and creative consultant based in Berlin, Germany. She is the founder of Rayas Collective and Sumo Baby.
Luisa graduated with a First Class (Hons) Bachelor's in Industrial Design from Central Saint Martins in London and completed her Master’s degree at the écal in Lausanne, Switzerland. She previously worked for Barber Osgerby in London and Konstantin Grcic Design in Berlin.
She is the recipient of the 2018 Fondation USM Design Grant and the 2019 Swiss James Dyson Award. In 2021 her work was awarded the German Sustainability Award and the Red Dot Design Award.
In addition to her design practice, Luisa regularly teaches as a visiting lecturer at institutions such as the University of the Arts Berlin, Central Saint Martins, and ECAL.
For further information, please get in touch via Email or say hello on Instagram.


















Branding, Art Direction + Package Design for Rayas Collective, 2023
Studio Visit, Photos by Anouk Moerman for Secrid Talent Podium / Dutch Design Week, 2023
Branding, Art Direction + Package Design for Sumo Baby, 2022














Sleep mask for Otto Keller, 2023, 100% organic cotton
Teaching, 2023, Museu de Arte, Arquitetura e Tecnologia Lissabon
180° C Vases, Extraperlo 2022, Color-Deko 180°C stickers, glass

















Stackability - A modern principle, 2018, HFG Ulm + ECAL
Sumo Baby, 2023, Sumotex materials
Rayas Collective, 2022, handwoven baskets









Spring Spotlight, 2017, aluminum, LED, rubber cable
Sumo Diaper, 2019, SeaCell
Sensu Sleeping Bag, 2018, SeaCell









SeaCell Masks, 2018, SeaCell
Compas Stools 2018, powder coated aluminum
Lattice Mirror, 2018, plastic paint grid, mirror glass
Secrid Talent Podium, 2023
TechTextil Innovation Award, 2022
Red Dot Design Award, 2021
German Sustainability Award, 2020
Selected Press
FAZ, Feature
The Berliner, Feature
Disegno, Feature
SZ Magazin, Feature
Otto Keller Magazin, Interview
Lexware Tell Your Story, Interview
Berliner Zeitung, Feature
Secrid Talent Podium, Interview
Exhibitions
Dutch Design Week, 2023
London Design Festival, 2023
MAAT Lisbon, 2023
Salone del Mobile Milan, 2023
Madrid Design Festival, 2022
Dubai Design Week, 2021
Lectures + Workshops
Lecturer, BA Product Design, UdK Berlin, since 2025
Lecture + Workshop, Central Saint Martins, London, 2025
Masterclass, MAAT Lisbon, 2023
Design for Sustainability, ECAL x EPFL, since 2022
International Cellulose Conference, 2023
Circular Studios, British Design Council, 2023
ADD International Textile Conference, 2022
Table Talks, HBK Saar, 2022
Junior Research Conference, HEAD Genève, 2019

©Peter Oliver Wolff
Luisa Kahlfeldt is a product designer and creative consultant based in Berlin, Germany. She is the founder of Sumo Baby and Rayas Collective.
Luisa graduated with a First Class (Hons) Bachelor's in Industrial Design from Central Saint Martins in London and completed her Master’s degree at the écal in Lausanne, Switzerland. She previously worked for Barber Osgerby in London and Konstantin Grcic Design in Berlin.
She is the recipient of the 2018 Fondation USM Design Grant and the 2019 Swiss James Dyson Award. In 2021 her work was awarded the German Sustainability Award and the Red Dot Design Award.
In addition to her design practice, Luisa regularly teaches as a visiting lecturer at institutions such as the University of the Arts Berlin, Central Saint Martins, and ECAL.
For further information, please get in touch at
hello(at)luisakahlfeldt.com







Branding, Art Direction + Packaging for Rayas Collective, 2023






Branding, Art Direction + Packaging for Sumo Baby, 2023



Sleep mask for Otto Keller, 2023, 100% organic cotton







Rayas Collective, 2022, handwoven baskets




Sumo Baby, 2023, Sumotex materials






180° C Vases, Extraperlo 2022, Color-Deko 180°C stickers, glass



Spring Spotlight, 2017, aluminum, LED, rubber cable



Sumo Diaper, 2019, SeaCell



Sensu Sleeping Bag, 2018, SeaCell


SeaCell Masks, 2018, SeaCell




Compas Stools 2018, powder coated aluminum



Lattice Mirror, 2018, plastic paint grid, mirror glass

©Peter Oliver Wolff
Selected Awards
Secrid Talent Podium, 2023
TechTextil Innovation Award, 2022
Red Dot Design Award, 2021
German Sustainability Award, 2020
Selected Press
FAZ, Feature
The Berliner, Feature
Disegno, Feature
SZ Magazin, Feature
Otto Keller Magazin, Interview
Lexware Tell Your Story, Interview
Berliner Zeitung, Feature
Secrid Talent Podium, Interview
Exhibitions
Dutch Design Week, 2023
London Design Festival, 2023
MAAT Lisbon, 2023
Salone del Mobile Milan, 2023
Madrid Design Festival,2022
Dubai Design Week, 2021
Lectures + Workshops
Lecturer, BA Product Design, UdK Berlin, since 2025
Workshop + Lecture, Central Saint Martins, London, 2025
Masterclass, MAAT Lisbon, 2023
Design for Sustainability, ECAL x EPFL, since 2022
International Cellulose Conference, 2023
Circular Studios, British Design Council, 2023
ADD International Textile Conference, 2022
Table Talks, HBK Saar, 2022
Junior Research Conference, HEAD Genève, 2019