The TT-93's profile is inspired by a falcon's wind-breaking gliding posture, sculpted to cut cleanly through the air and reduce drag at speed, so the aerodynamics are a genuine performance feature rather than just styling. This makes it a strong choice for riders focused on speed, time trials, or longer training rides where reducing wind resistance actually matters.

The TT-93 is engineered to a controlled weight of approximately 245g (±), giving it true lightweight performance without compromising the structural integrity of the 3D Grid protection system. That balance of low weight and aerodynamic shaping is what makes it comfortable even on long, high-intensity rides.

The TT-93 pairs its aerodynamic shell with an antibacterial liner designed to manage sweat and stay fresh through long, high-intensity efforts, which matters a lot when training in Indian heat. Riders who prioritise maximum open-air ventilation over aerodynamics may prefer the CS-57's heavily vented design, but the TT-93 is built to balance both speed and comfort.

Measure your head circumference about an inch above the eyebrows and match it against Sunrimoon's size chart, since a close, aerodynamic fit only works properly when the size is correct. The magnetic buckle allows quick, secure one-hand fastening, making every start and stop on a training ride seamless.

The TT-93's antibacterial liner is designed to keep the interior fresh and hygienic during long rides and repeated high-intensity efforts, reducing odour build-up that comes with heavy sweating on training days. It's a practical feature for riders logging serious weekly mileage in Indian conditions.

Remove the antibacterial liner and hand-wash it with mild soap and cool water, then let it fully air-dry before refitting it, since regular sweat exposure on training rides means the liner needs more frequent cleaning than a casual commuter helmet. During monsoon months, ensure the shell and liner are completely dry before storage to prevent odour or mould.

Every TT-93 sold on DoGoodCo is a genuine, authorized Sunrimoon product backed by warranty support against manufacturing defects. Orders are typically dispatched within 3 working days of confirmation, with total delivery time depending on your pin code, and all orders are prepaid online at checkout as cash on delivery is not offered.