Onda Bética, a specialized outlet, has published sketches of what they claim are the new Real Betis 2023-24 home, away and third kits - thanks to @los_comegambas for the heads-up.

2023-24 will be Hummel's second season with Betis since taking over from Kappa in 2022.
Important: As stated by Onda Bética in their article, these images are "approximations based on information confirmed by Onda Bética." There could be differences in the final designs.

The Hummel Real Betis Balompié 2023-2024 home jersey is predominantly white with thin green stripes on the front. Curiously, the back of the Hummel Real Betis Balompié 2023-2024 shirt is set to be "entirely green".
Hummel combines the Real Betis 2023-24 home football shirt with white shorts and socks.

The Hummel Betis 2023-24 away football shirt has a simple design in a darker shade of green than the first jersey.
Green shorts and socks complete the new Hummel Betis 2023-2024 away kit.

The Hummel Real Betis Balompié 2023-2024 third shirt is black fading towards grey at the bottom, with no elaborate design.
Black shorts and socks complete the new Hummel Betis 2023-24 third strip.
Are you a fan of the Real Betis home, away and third kits by Hummel? Comment below.

2023-24 will be Hummel's second season with Betis since taking over from Kappa in 2022.
Important: As stated by Onda Bética in their article, these images are "approximations based on information confirmed by Onda Bética." There could be differences in the final designs.
Betis 23-24 Home Kit
Check out Hummel's Betis 23-24 home football shirt below.
The Hummel Real Betis Balompié 2023-2024 home jersey is predominantly white with thin green stripes on the front. Curiously, the back of the Hummel Real Betis Balompié 2023-2024 shirt is set to be "entirely green".
Hummel combines the Real Betis 2023-24 home football shirt with white shorts and socks.
Betis 23-24 Away Kit
Check out Hummel's Betis 2023-2024 away football shirt below.
The Hummel Betis 2023-24 away football shirt has a simple design in a darker shade of green than the first jersey.
Green shorts and socks complete the new Hummel Betis 2023-2024 away kit.
Betis 23-24 Third Kit
Check out Hummel's Real Betis 2023-2024 third jersey below.
The Hummel Real Betis Balompié 2023-2024 third shirt is black fading towards grey at the bottom, with no elaborate design.
Black shorts and socks complete the new Hummel Betis 2023-24 third strip.
Are you a fan of the Real Betis home, away and third kits by Hummel? Comment below.