We understand that you are inquiring about the material of the product.
PC&H5:
Generally, you may find this information by browsing at the product listing.
As you scroll down, you can find the [Composition, Care & fit], which gives you an overview of the product's Composition, Care, and Fit.
APP:
You may find this information by browsing at the product listing.
As you scroll down, you can find the [Product details], which gives you an overview of the product's Composition.