EVERYDAY MATERIALSAtlas
Material behaviour

Moisture behaviour

Water changes more than wetness.

What it means

A material can absorb water into its structure, adsorb it at a surface, or hold it between fibres and pores. These mechanisms influence dimensions, stiffness, drying and comfort. Water-repellent and waterproof are different claims, and neither tells the whole story of how a finished textile breathes.

Look for it in everyday life.

Wood changes dimensions with moisture; cotton fibres and fabric spaces both hold water.

Meet it in a material.

Nylon

One family can become a bristle or a gear.

Polymers

Polyester fibre

Bottle chemistry, textile structure.

Polymers

Cotton

A seed fibre turned into everyday fabric.

Natural materials

Wool

Crimped fibres hold a pocket of air.

Natural materials

Wood

Structure grown in directions, not poured into a mould.

Natural materials

Paper & paperboard

A network of fibres becomes a sheet, box or carton.

Natural materials

Polyacetal (POM)

Small moving parts that keep their geometry.

Polymers

Flax / linen

A stem’s supporting fibres become linen.

Natural materials

Silk

A cocoon filament becomes a textile.

Natural materials

Leather

A biological fibre network, stabilised for use.

Natural materials

Bamboo

A grass stem becomes a useful structure.

Natural materials

Gypsum

A mineral whose bound water can be rearranged.

Elements & minerals

Stoneware

Clay made dense enough for everyday ware.

Glass & ceramics

Follow the evidence

Original explanations informed by the sources below. Technical and industry sources support material behaviour; industry environmental marketing is not treated as a universal comparison. Read our editorial method.