I just bought a new HJC IS MAX II modular. this is my 1st venture into the modular world. I have worn 3/4 for years. So far this is a very comfortable, quiet and very well ventilated helmet. It is not hot enough to really tell-yet, but on the last 70 degree day, i felt lots of air flow with the vents open.
I used this HJC for many, many miles and highly recommend it for hot weather, IF, you want the full coverage. I live in Florida, and my long trips always include at least a full day of riding in high heat and humidity. It will handle your speakers and mic. I love this helmet, but at 95+ degrees and 99% humidity, just about anything is hot. The HJC is a heck of a lot cooler than my fullface Shoei.
Recently, I found a Bell Mag-9 Sena, on a great sale. It has a dropdown tinted shield, and as well as a clear shield, and a visor. What's nice, is that it is so small and light. It has accommodations for speakers and mic. Wearing a regular helmet, after wearing this, feels really confining, and huge! I wear ear plugs, so the downside doesn't matter so much for me, and that is that it is quite noisy. Wind noise bothers me, so I wear ear plugs no matter what helmet I wear. I really like this thing. It's certainly different, but it is very comfortable.
BTW, I have tried on the Nolan104 others are talking about, and it feels like a great helmet. I didn't buy it, just because of cost, at the time. I think it would probably be a good choice as well.
I wish I could trade in all of my helmets, or something. I have a ridiculous number of them, that are hardly worn. I guess I'm always looking for something better. The HJC is the only one that has been just about worn out. I guess that says something. :roll: