Spenco Breeze Kholo Sandal Slides - Women's 5 Color:Slate Blue/Penguin They have a synthetic upper

They have a synthetic upper and a rubber outsole with textile bottom

due to the lack of an equivalent heel strike pad we don't classify these insoles as being suitable for most athletic activities

while preventing foot

Water resistant & quick drying

Spenco Breeze Kholo Sandal Slides - Women's 5 Color:Slate Blue/Penguin They have a synthetic upperProduct Details Overview: The Spenco Kholo Breeze Sandal Slides for Women have a breathable mesh strap that has a soft lining and a two part outsole, making these sandals comfortable and lightweight. They feature Spenco's Total Support Contour and include a metatarsal dome for added support. Their Ultra Fresh Antimicrobial will help control odor. Product Features: Semi rigid orthotic arch support Soft breathable mesh strap with a soft synthetic lining