smoke free, low fragrance, pet friendly home From the Patagonia Website: "Our most versatile technical top is built for use on the trail or on the water: It’s quick drying, has stretch for mobility and comfort, plus HeiQ® Mint odor control. Made with 50-100% recycled polyester, Capilene® Cool Daily styles keep you comfortable when you’re working hard in conditions ranging from cool to hot. Made in a Fair Trade Certified™ factory. Solids and prints 3.7-oz 100% recycled polyester (heathers and cross-dyes: 50% recycled) jersey with HeiQ® Mint odor control and a wicking finish Made in a Fair Trade Certified™ factory Care Instructions Machine Wash Warm, Do Not Bleach, Tumble Dry Low, Cool Iron, Do Not Use Fabric Softeners"