The new, optional cover for the Evo Swiss Swissflex mattress models with the name ‘natural wool’ consists of renewable resources (excluding zipper). For customers who prefer wholesome and natural products. 

Top fabric: 100% cotton 
Cushion: carded natural wool
Care: Washable up to 40°C.
SEP^® (shoulder relax plus): Yes (optional)
DUO (2 individual mattresses connected with one zip fastener): Yes (optional)