HJC C70 NIAN Full Face Motorcycle Helmet.

The C 70 features an internal sun shield with a manual, easy-slide lever mechanism. The Advanced Polycarbonate Composite Shell provides a lightweight helmet, with superior fit and comfort using advanced CAD technology. The “ACS” Advanced Channeling Ventilation system allows full front to back airflow to flush heat and humidity up and out.

Features

Advanced Polycarbonate Composite Shell
Easy Slide Lever Mechanism Operates a Dark Smoke HJ-V7 SunShield
Impact-Absorbing Multi-Density EPS Liner
Includes Pinlock®-Ready HJ-20M Shield
Upgraded Center One-Touch Open/Close Locking System
D-Ring With Retention Strap
SuperCool™ Moisture Wicking Interior
Glasses Groove Easily Accommodates Riders With Eyeglasses
RapidFire™ Shield Replacement System
Built-In Communication Speaker Pockets

Sizing

Wrap a tape measure horizontally around your forehead. Select the helmet that is the closest fit to that size. A helmet should fit snug on your head. If it moves while wearing, it is too large. If it is painful to wear, it is too small.

Size Chart
Size	CM:	Hat Size	Inches
2XS	51-52	6 3/8 - 6 1/2	20 - 20 1/2
XS	53-54	6 5/8 - 6 3/4	20 7/8 - 21 1/4
S	55-56	6 7/8 - 7	21 5/8 - 22
M	57-58	7 1/8 - 7 1/4	22 1/2 - 22 7/8
L	59-60	7 3/8 - 7 1/2	23 1/4 - 23 5/8
XL	61-62	7 5/8 - 7 3/4	24 - 24 3/8
2XL	63-64	7 7/8 - 8	24 3/4 - 25 1/4
3XL	65-66	8 1/8 - 8 1/4	25 5/8 - 26
4XL	67-68	8 3/8 - 8 1/2	26 3/8 - 26 3/4
5XL	69-70	8 3/4 - 8 3/4	27 1/4 - 27 5/8