Castelli Insider Short Sleeve Jersey

The Castelli Insider Jersey is primarily designed for use in your pain cave, though it's suitable for hot weather outdoor wear too. Made from a light D Mesh that's a blend of polyester and a touch of elastane, it's knitted widely enough to let air circulate, though narrowly enough to preserve the jersey's opacity, so that you can ride or work out in a group without embarrassment.

With no natural winds to lower your temperature, training indoors can get warm, which can affect your performance. The stretch of the elastane ensures this jersey offers a comfortable but close, flattering fit, while the polyester encourages sweat to move out and cool you more quickl - allowing you to exercise harder and for longer.

The jersey also benefits from the inclusion of a HEIQ Fresh Tech silver-free odour control treatment. You'll find that, even when you're pushing your limits and feeling sticky, you will never smell less than fresh.

Meanwhile, a full zip will allow you to ventilate or remove your jersey at any time, while a low collar and short waist will allow heat to escape. Two pockets at the back further increase the jersey's utility by allowing you to stow gels, ear buds, a headband or anything else you want to hand as you train.

All these amazing features make the Castelli Insider a practical jersey, one that will keep you cool and comfortable when you're working hard, whether that's in a cybersport session or while exploring the Lake District. Either way, you'll look and feel great wearing it.

Features

• Constructed from semi-open D Mesh, made from 9% polyester and 7% elastane
• This ensures a close fit and promotes wicking
• With HEIQ Fresh Tech silver-free odour control treatment
• Full-length zipper for easy removal or mid-route ventilation
• rear pockets for storage
• The perfect balance between airiness and opacity
• For outdoor use as well as indoor training
• Weight: 86g (Medium)
• For use at temperatures from 0-40°C