I live in Florida and just got back from a 2 hour walk/ jog with the dogs on the trail. I put my m&p shield in my thunderwear(First time using it ) Dressed in just some gym/basketball style shorts and a t-shirt. I couldnt feel a thing very secure and I was fully sprinting with my puppy at one point. My cell phone bouncing in my pocket was way more inconvenient than the 9mm was. I was covered in sweat head to toe but my gun was dry. Yes I do admit the draw can be a little slower out of the thunderwear but it is worth the comfort for me. The thunderwear will def. be the go to holster when Im working out or wearing gym shorts. Just thought I should pass this on.