smith asian fit bike helmet Triad Cycling – Adult Versatile Road Helmet with MIPS Technology, Alecks Crash Detection + Zonal Koroyd Coverage – Lightweight Protection for Men & Women – Matte Black/Topo and works with internal air channels and open intake and exhaust ports to provide maximum ventilation Smith Optics Quantum MIPS Asian

Features: Drop-down smoke shield: retractable, easy push-and-pull, high-definition Removable bolted visor Double D-ring retention system Advanced DOT Approved Polycarbonate Shell Design Impact Absorbent Comfort Liner Adjustable Nylon Chin Strap Removable Button Snap Visor Less bulky then normal helmets with maximum protection Lightweight Helmet around 2lbs (32 ounces) Snug sleek fit on head Color: Matte Black Included with purchase is Nylon bag for carrying your helmet

But the basic structure of all helmet types is the same

Step-through frames are easier to mount/dismount, ideal for urban use

So, which is better: backpacks or suitcases