Natural fiber athletic wear is an investment worth protecting. With proper care, your merino wool, organic cotton, and hemp garments can last for years—often outlasting synthetic alternatives that pill, stretch out, or develop permanent odors. Here's how to maximize the life of your natural fiber wardrobe. First rule: wash less frequently. Natural fibers, especially merino wool, resist odors naturally. After a workout, hang your garments to air out instead of immediately toss