A unique structure for an ultra transparent & soft sheet mask: This ice crystal sheet mask is a lyocell support (40 gr without liner) with a unique fibbers structure reminding a cristallin structure. This non woven structure explains the support’s transparency. The Ice Crystal’s fibber diameter is lower (1,3 decitex) than a classic non woven-support (1,7 decitex), which means the Ice Crystal support is softer than Lyocell. A comfort of use with a fresh feeling: This Ice Crystal sheet mask offers a nice comfort of use by perfectly fits the face while immediately leave a fresh feeling. Moreover, compared to the lyocell support, the Ice Crystal sheet mask offers a longer care duration because it dries less quickly. 100% recyclable & biodegradable