Made from a 3D Thermo Ultralight fabric the Trail Postural top is Ultralight & does not retain water & will remain featherlight in all conditions. With Thermo-Regulating benefits its unique weaving favours the circulation of the air & allows a perfect balance to allow the body to remain at a constant temperature without rising or falling suddenly. A real protection in winter against cold & heat in the summer. Spin Control are the light compression areas directly woven into the fabric to ensure you have correct body positioning during long lasting effort allowing your shoulders stay aligned. This will boost breathing capacity & improve oxygenation during & after effort facilitating quick recovery. The Two Level Pocket system allows better organisation of equipment on 2 levels for easy & rapid access.LIGHTNESS & BREATHABILITY A new lighter fibre more hydrophobic makes it the most breathable top. It does not stick to the skin & conserves a silky feel. It is very well ventilated for total freedom of movement. An interactice fibre On/ Off adjusts ventilation with your effort. STRENGTH & PROTECTION A lightly compressed postural weave provides excellent spinal alignment. Better muscle alignment improves oxygenation. Thermoregulatory fibres protect against the cold & the heat. FUNCTIONAL & INTELLIGENT The rear pocket provides other storage spaces. Full autonomy is guaranteed on long-distance races with all your essentials at reach. An innovative zip highly resistant fluid & self-locking opens & closes easily.