Ninja is offering a Sip Perfect Travel Mug for free as part of their sampling and feedback program. To apply, answer questions on their webpage and, if chosen, you'll receive the mug without any payment obligations. Ensure your details are accurate for shipping notifications. Regularly check for new free samples to take advantage of more offers. 

 The Ninja Sip Perfect Travel Mug is designed to provide an optimal drinking experience by regulating the temperature of your beverage.