Instruction: Answer the given question by extracting information from the supporting document.

Input:
Question: How do you attach the camera to the chest strap
Document: The quality of the products is excellent. The camera fits the mounts no problem, the strap are all fully adjustable. The head band has silicone beads on the part of the strap that contacts your head to avoid slipping. I have used the head band for snow tubing and sleigh riding without a problem. The straps have enough adjustment to fit my 9 year son as well. Very pleased
Great straps except I wish they would have said you need the J hook mount to put the gopro on the chest strap. One more thing I have to buy now, ugh. Buyer beware. Otherwise no problems.
I opted to buy this over the actual GoPro branded items and think they're on par if not better. My only complaint, and I don't know how I missed this, was the chest mount didn't come with a vertical mount for the camera. Didn't realize I needed I tried hiking and noticed the camera wouldn't mount a perfect 90 degrees. Once I got the right attachment though, it's on like donkey kong!
Good quality pretty good price too. Has lots of adjustment!.. This chest belt is very comfortable, lots better than the arm scrap I used in the past. I am using it for fishing and you forget you have it on, comfortable !!! Gives  you better views than my old strap. I also adapted  it for my O-Sky which I 'm liking better than my Hero 2. Will use the head mount when riding my bike.
Ordered this item unsure of its quality.............. it is fantastic ,.... I modified it to use with another camera to get some video while I am fly fishing.....the quality is second to none......... highly recommend
I've owned these and the gopro brand and they're both practically the same so far. Both chesty n head strap are well worth the super low price
I bought this to go along with a knockoff version of the GoPro, the Sunco Dream 2. I was very happy with the quality and price for this item! The camera I bought has the same connector pieces as the GoPro3, so it worked perfectly.Quality made items. The mounts on these were made of thick plastic, and the straps were very good quality as well. I haven't used them a lot, but I've been very, very happy with what they are so far.
Fantastic sturdy build quality! One nice suprise is the head strap has a grip inside thin line that helps to keep it on your head (don't worry it's not sticky to the point of pulling your hair). They do have kind of a funny smell, but if you leave them out of their bag to air out then they are just fine. No issues thus far.
Same quality as the OEM straps, best part is that this comes with a chest and head mount for less than the price of a head mount alone!
This combination works very well. The head mount includes padding making it comfortable to wear for extended periods. The Chesty fits my son (5'5&#34; and 110lbs) and  me (6'2&#34; and 200lbs) with room to spare on both ends. The fit is comfortable and flat on the chest. The attchements match the GoPro accessories perfectly.
Answer: The gopro camera comes with quick connect mounts that slide into place and lock. I have older mounts and they didn't work without some modification to the chest strap. The newer hero 3 mounts should work without modifying the chest strap mount.