Materials: The main material is ION's Super Perforator Neoprene which is pretty much as breathable as neoprene gets

using a cable available separately

Who's this for: Anyone with a Shimano Nexus internally geared hub

and advanced compounds

Mons Royale Tarn Merino Bike Wind Jersey - S - Cypress / Caramel / Black Needs Images Materials: The main material isA lightweight windbreaker designed to offer protection from the chill on high output rides. Fast wicking Merino Shift fabric keeps your temperature regulated and a 100% recycled Pertex Quantum ripstop front panel shields the wind and chill. Features Raglan sleeves 100% recycled Pertex Quantum ripstop front panel to protect against the wind and chill Bonded neckline for a smooth next to skin finish Hidden sunglasses wipe