don't buy online - get into to a dealer and find a fit - the brand is almost secondary - they all fit a bit different - experienced riders tend to know which ones fit their heads.
Make sure its decently snug but no pressure points as they will turn to blinding headache.
Fit is the key - take a rider with you .....many of us have more than one helmet.
There is nothing wrong with Kiji either as long as you can try it.
I got a $400 Shoei as a secondary Helmet for $160 cash - guy bought it on line - was too big. My gain.
I wear a cheapo Bell open face...fits me fine.
Don't get hung on price and graphics and brand.....DO get serious about fit and feel .....and if you intend to do tunes - room for comm is good but most current brands are okay.
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non-slip boots a very good idea for a newbie. Make sure the soles are nonslip - sometimes hard to find.
Jacket for sure - I like armoured mesh with a liner
http://www.webbikeworld.com/joe-rocket/phoenix-jacket-pants/
- there are excellent Joe Rocket mesh around used for cheap - then buy a liner ( $60 ) plus a rain overjacket ....serves me from about 6 degrees to 30+
Ballistics are really hot - gotta be real cold before mine goes on.
Pants ...meh
Gloves yep - some of the new armored ones are also cool..don't get too tight as when you grip the bike it shifts the fit quite a lot.
and safety glasses are ideal for night riding - never fog and $7 they are way cheaper than shields if they get scratched.
They are made to very high optical standards....hit a safety supply store - they have sunglasses the same way.....take your helmet with you.
Dayglo mesh vest - might save your life in the rain, fog or dark. $12 at the safety store and the drivers will think you're a cop.
Goes over anything.