Thermatek Heated Blue Travel Blanket With Soft, Cozy Fleece and Built-in Heat Zones to Target Your Feet - Includes 2 Heat Packs with 8 Hours of Heat Per Pack Soft, cozy fleece and built-in heat zones target your feet to keep them toasty warm Includes 2 heat packs - 8 hours of heat per pack Easy to use - air-activated, instant warmth. Enjoy long-lasting, soothing comfort Heat packs are safe, odorless, disposable after use, and comply with airline security screening restrictions Ideal for use in the home or on the go