| What it is | Synthetic (polyester) base layers |
| Does | Wicks, dries fast, regulates temp |
| Weights | Lightweight → Thermal |
| Materials | Largely recycled; odor control |
Patagonia Capilene is a line of synthetic (polyester) base layers engineered to wick moisture, dry quickly, and regulate temperature during activity, made largely from recycled materials with odor-control treatment. Offered in several weights — from lightweight for warm or high-output use to thermal weight for cold — it’s a long-standing benchmark for performance synthetic base layers.
Choosing a base layer
A synthetic base layer built for wicking, made from recycled polyester — the synthetic counterpart to merino wool.
Frequently asked questions
What is Patagonia Capilene?
Capilene is Patagonia's family of synthetic base layers, made primarily from recycled polyester, designed to pull sweat off the skin, dry quickly, and help regulate body temperature during activity. They include odor-control treatment and come in a range of weights for different conditions, and are a well-known standard in performance base layers.
What Capilene weight should I choose?
Lightweight (and Cool) weights suit warm weather and high-output activity where fast wicking and breathability matter most; Midweight is a versatile all-rounder for cool conditions; Thermal (heaviest) provides the most warmth for cold-weather use. Match the weight to your temperature and exertion level.
Capilene vs merino base layers?
Capilene (synthetic) dries faster, is more durable, wicks aggressively, and costs less; merino wool is naturally more odor-resistant, comfortable, and warm when damp but dries slower. Capilene suits hard aerobic efforts and wet conditions; merino suits multi-day comfort and odor control. Capilene adds odor treatment to close the freshness gap.
Sources
- Capilene base layers — Patagonia
- Base layer fabrics — The Mountaineers