Giro Source MIPS Bike Helmet crankbrothers All zippers are YKK Watertight

All zippers are YKK Watertight preventing any wetness from getting in

Sleeveless styling works with sports bra or regular bra

Insulation: Thinsulate 80g body

The DHF incorporates ramped knobs for low rolling resistance and channel-cut knobs to increase gripping edges

Giro Source MIPS Bike Helmet crankbrothers All zippers are YKK WatertightCapably Equipped For Fun and Adventure The Source MIPS helmet combines advanced performance and protection in a rugged, trail ready design. Featuring deep coverage with aggressive ventilation from 16 vents coupled with deep internal channeling, it helps keep things cool even when the riding gets rowdy. And with the comfort and secure feel of the Roc Loc 5 fit system with Integrated MIPS brain protection, plus a moto style adjustable screw in visor and