Gruuv Slip On Trainer - Night Sky OmbreStretchy knitted upper for breathability and snug fit Step in effortlessly with the easy slip function Removable dual fit comfort foam insoles covered in breathable textile This unique feature allows for a customisable width ECCO FLUIDFORM provides soft flexible and fluid movement within a naturally supportive anatomical fit Dynamic two way flex rubber sole that not only provides you grip but full use of your foot at any angle Soft ultra light PHORENE