Understanding natural fibers is the first step to choosing layers that feel good, perform well, and fit the way you live. Here we look at fibers from both plants and animals—from wool, cotton, hemp, linen, and silk to other natural materials worth discovering.

Animal Fibers

Merino wool, alpaca, cashmere, silk, and other animal fibers offer natural warmth, softness, breathability, and temperature regulation. Merino wool is especially versatile, making it a popular choice for base layers, everyday clothing, and outdoor performance wear.

Plant Fibers

Cotton, hemp, linen, and other plant fibers bring their own combination of softness, breathability, durability, and comfort. We’ll look at how these fibers differ and where each one works best—from everyday basics to warm-weather and active layers.

Get to Know the Fibers

Merino Wool

Cotton

Hemp

Linen

Silk

Alpaca

Cashmere