Fitness model never wears undies to the gym and insists it's 'more comfortable'

dailystar.co.uk:

Instagram model claims not wearing any undies to the gym is much more comfortable. Grasi Mattos, 24, shared her fitness tips so that other women can lift weights while feeling pleasant in what they're wearing.In fact, the bombshell believes females must not wear panties or a bra during their exercises.So do you agree?Since Grasi made her statement, some of her 95,500 followers on Instagram have noticed she's actually going commando.She said: "Playing sports without panties is much more comfortable as it allows you to have one layer of clothing."This also prevents you from having irritations due to friction with the fabric."And the model advises to choose the right pants for the workout.She added: "It must not be too thin, to block the dirt..