We think what's most important about Hilaria Baldwin's recent Instagram post -- a video of her working her glutes and leg muscles in g-string underwear and a sports bra -- isn't what she's wearing, but the fact she's 35 years old and a mother of four and looks like THIS!
Baldwin, a fitness expert, explains the lower-body routine in her caption, writing, "Entire leg workout…fronts, backs, calves and butt! Also, if you activate your core, it’s great for abs too. 3 sets of 5 of each.â€
She goes on to preempt haters who are going to criticize her wardrobe choice ... "Yes, I’m in my bathroom, yes, I’m wearing a sports bra and underwear. No, you shouldn’t get offended…unless you never go to the beach. My wardrobe choice allows you to see how I’m activating the muscles. Going through the motions of an exercise is good…but doing them with intention and activation will make them so much more effective!"