The D30 Run running shoe from Karrimor is their cushioning model, using a gel in the rearfoot.
From the company:
The Karrimor D3O Running Shoes feature an aegis microbe shield lining to add comfort and prevent odour, a mesh upper teamed with a lightweight bonded upper for breathability and support and a TPU shank to the arch for more underfoot stability. The men's running shoes also feature D3O cushioning technology for maximum shock absorption when your foot experiences high impact with the road as well as Gel technology to the heel, helping lessen impact and make moving through the gait cycle more comfortable.
Karrimor Runnings Shoes