The S-79 features a hidden magnetic lens system with photochromic technology that automatically adjusts its tint based on sunlight intensity, darkening in bright afternoon sun and clearing up in shade, dusk, or tunnels. This is particularly useful for Indian riders who move between strong direct sunlight and shaded stretches on the same ride, cutting glare without needing to swap eyewear. The lens attaches and detaches magnetically, so it can be removed entirely for overcast or night rides.

The S-79's shell is designed with airflow channels that work alongside the 3D-GRID structure to help vent heat away from the scalp, which matters a lot when riding through Indian summers or humid monsoon mornings. Paired with the antibacterial liner, the helmet is built to stay fresher for longer even on sweaty rides. Riders wanting maximum airflow for very hot, high-intensity rides may prefer a heavily vented model like the CS-57, but the S-79 handles typical commuting and touring heat comfortably.

The S-79 uses a lightweight in-mold shell construction paired with an antibacterial liner, keeping the helmet comfortable for extended wear without feeling bulky on the head. A magnetic buckle lets you fasten and release the strap in about a second with one hand, a small but genuinely useful detail when you're managing traffic, a phone, or a water bottle mid-ride. The result is a helmet that feels light and secure whether you're on a 20-minute commute or a weekend long ride.

To size the S-79 correctly, measure your head circumference about an inch above your eyebrows with a soft measuring tape and match it to Sunrimoon's size chart on the product page before ordering. The helmet should sit level and snug without pinching, with the front edge just above your eyebrows and the retention system holding it firmly without excessive pressure. If you're between sizes, most riders in India find sizing up slightly more comfortable for all-day wear.

The antibacterial liner can be removed and hand-washed with mild soap and cool water, then air-dried away from direct sunlight to preserve the foam and fabric. During monsoon months, make sure the helmet and lens are fully dry before storing them to prevent odour or mould buildup, and wipe the outer shell and lens with a soft, damp cloth rather than harsh chemical cleaners. Regular cleaning also helps keep the magnetic lens mechanism moving smoothly.

Yes, every Sunrimoon S-79 sold through DoGoodCo is a genuine, authorized product, not a grey-market import, so you get full manufacturer build quality and after-sales support. DoGoodCo backs each purchase with warranty support against manufacturing defects, giving Indian riders confidence that they're buying an authentic, verified helmet rather than a duplicate.

Orders are typically dispatched within 3 working days of confirmation, though total delivery time depends on your location and pin code, so exact transit days can vary across India. All orders on DoGoodCo are prepaid at checkout; cash on delivery is not currently offered, so payment is completed securely online before your order ships.