6821-ECORecycled Balaclava Face Mask. POST-CONSUMER RECYCLED MATERIALS - Made with 95% recycled polyester and 5% spandex. THERMAL PROTECTION - Warmth in cold conditions. STRETCHABLE MATERIAL - Flexible to fit most head sizes. DURABLE MATERIAL - High-quality fleece for long-lasting use and wear. LONG LENGTH - Full thermal head/neck coverage that tucks into jackets. COMFORTABLE & NON-BULKY - Fits comfortably under a hard hat or helmet. REFLECTIVE ACCENT - Helps keep wearers seen and safe. RECYCLED PACKAGING - Packaged in recycled 100% LDPE materials (Low density polyethylene). ⚠ WARNING: California Proposition 65 Warning. This product can expose you to chemicals including lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www. P65Warnings. ca. gov.