Noise Cancelling Headphones - good idea or terrible idea?

I have a pair of bose quietcomfort headphones that I would recommend. They actively block out most noise.

Noise cancelling doesn't have to be on, so they can work as regular earphones.

I also have a pair of noise induction earphones that don't go in the ear, letting me listen to a distraction and be able to hear (in case there's a danger).

Hey, do you have the quietcomfort headphones or earbuds? I've had the headphones before. Best thing ever. But I didn't like wearing them at say the pub, because of the size and obviousness. I'm keen on the in ear buds, but keen for an opinion on the comfort? 

Bose Quiet Comfort 20 are in-ear and the noise cancelling is pretty close to the larger around ear models. It also has an "awareness mode" where you can toggle the noise cancelling on and off. Not sure about the later models though (I worked for Bose for quite a while but left in 2015 so I'm a little out of the loop) 

Bose Quiet Comfort 20 are in-ear and the noise cancelling is pretty close to the larger around ear models. It also has an "awareness mode" where you can toggle the noise cancelling on and off. Not sure about the later models though (I worked for Bose for quite a while but left in 2015 so I'm a little out of the loop) 

Tbf I was also quite surprised with the 90 day trial period! 3 months is crazy!! So they must be confident.

I've had various in ear ones from Bose, all with the "Stay Hear" tips (think that's what they were called). You get a variety of sizes to suit and they're hands down the most comfortable ear buds ever. I've tried a few different brands recently but havent found anythign that comes close for sound or comfort..

Cool, yeh I've never had better headphones than the Bose around ear ones. Managed to get a pair in the sales. But after 5 years the padding is failing a little, and with the obviousness been looking in ear. They look like rubberised plugs? I've struggled with the likes of beats etc due to finding them painful