MET Trenta 3K Carbon Limited Edition Helmet

The MET Trenta 3K Carbon Limited Edition Helmet is MET's top-tier road racing helmet, and this Rainbow colorway is a limited run tied to the UCI World Championship stripes Tadej Pogačar wears as World Champion. At the core of the Trenta 3K Carbon is MET's 3K Carbon Airframe — a carbon wing structure embedded into the EPS liner that lets MET cut the amount of EPS foam by roughly 20% without giving up any shock absorption, freeing up room for larger internal air channels than a standard in-mold shell would allow.

Those air channels feed 24 vents, with NACA-style intakes at the front using the Venturi effect to pull air through the helmet and rear deflectors to push hot air back out, so the ventilation is doing double duty for cooling and aerodynamics rather than one at the expense of the other. A size medium comes in at around 225 grams, light enough to disappear on a long climb. Safety runs through MIPS Air Node, an ultralight layer that redirects rotational forces in an angled impact, and the helmet carries a Virginia Tech 5-star safety rating with a 40% improvement in linear and rotational impact protection over the previous Trenta generation.

Fit comes from MET's Safe-T Orbital system, which adjusts 360 degrees around the head along with vertical and occipital positioning, so the retention stays locked in through the effort of a hard group ride or a race. Dedicated sunglasses ports let you dock your eyewear securely when you're not wearing it, Air Lite straps keep the chin strap from adding bulk, and a reflective rear decal adds a bit of visibility for early or late rides. At $550, this Rainbow edition carries a premium over the standard Trenta 3K Carbon colorways, reflecting both the limited-run status and the World Championship connection behind it.