Great helmet light weight and very well vented. One problem, the back strap is not anchored to the inside sides of the helmet but rather the back of the helmet which makes for awkward strap angle. I fixed it by routing the straps thru the mounting side straps which hold the back adjustment dial.

the helmet that I bought from SwimOutlet the Louis Garneau Diamond Helmet is the best one that I ever bought for myself and it does fit on my head true to size. I want to tell you how I like how the helmet is made: In-Mold Construction Industrial process binding the front liner and outer shell for increased durability. Evacuation Channels: The internal 40 channels for better air flow on the diamond helmet. The Super MSB Technology: The Ring-shaped protection at the base of the helmet reinforces the perimeter for protection on this helmet.  The Exo-Insert Technology: Lightweight inner plastic reinforcement spreads the shock of impact and helps maintain the helmets structure. Composite Reinforcement: Lightweight composite skeleton provides structural support and integrity on impact. SpiderLock Elite: I like how this is made adjustable and detachable rack-and-pinion mechanism using only one had to stabilize the helmet on my head when riding my bike this is great. The Louis Garneau Diamond Cycling Helmet is the best helmet that I saw and how it is made and I did alot of research on other helmets before I bought this one from SwimOutLet and I like  this helmet alot Louis Garneau Diamond Helmet. I would really recommend this product to family and friends. I know even the Professional Cyclist wear these kind of helmets to when doing there racing and that is why I bought this product because I needed the best helmet that I can find and buy from this company from
SwimOutLet Store. I just want to thank all the staff at this store for helping me over the phone thank you so much. I have been cycling all my life for 30 years of my life and I like doing long miles on my bike.

                                                                     Sincerely,
                                                                     Warm Regards Bob Johns

Fits right, light. Don''t like the white straps.