Fitness expert Shay Kostabi says you can get a total-body workout in just 15 to 20 minutes with ReXist360 resistance bands.
Kostabi, a master trainer for Flybarre at Flywheel in New York, says the beauty of ReXist360 is they're lightweight, so you can take them anywhere.
They also come in multiple resistance grades so you can scale your workout up or down while walking, running or doing other strength-training moves.
Shay credits them for her sizzling physique, and says a 15-minute session using ReXist360 is comparable to an hour at the gym.
Shay, who has been featured in Self, Glamour and Fitness magazines, says her New Year's resolution is to eat well, exercise daily and be happy and centered.
"I'll chose healthy foods that are kinder on my system and to the planet," she said. "I'll meditate and set aside time to reconnect with friends and important people in my life."