Assos EQUIPE RS Winter JacketThe Assos EQUIPE RS Winter Jacket is their most advanced and refined winter cycling softshell jacket to date. A host of advanced materials and it's aerodynamic tailoring make it ideally suited to both pro-athletes and the most demanding of dedicated amateur riders too. The harder you ride, the more the EQUIPE RS Winter Jacket excels. The aim of the Assos design team has been to create a winter jacket that 'activates' when you're training and racing at higher intensities. It harmoniously balances insulation and temperature regulation, keeping you perfectly comfortable on all-day endurance rides through to short and intense interval sessions.Engineered ExcellenceIts incredible performance is made possible thanks to the development of a lightweight softshell material called SPHERE. Replacing Assos' renowned Stratagon, it offers waterproof and flexibility with outstanding moisture control perfectly suited to cycling hard. Inside, across the chest are several thin layers of this SPHERE. This not only protects the chest from cold it's also quick to move sweat off the skin so you don't feel a chill. To the outside, 3-Layer SPHERE light provides a windproof and water-resistant barrier as you face into the weather. A thicker and more insulating version of the same 3-layer material is used across the upper back and forearms for added warmth. To boost climate control, Assos have deployed their Diffusor “valves” at the shoulders, allowing air inside to prevent overheating.  Moving to the back, OSMOS Heavy is the most insulating of Assos' brushed-backed materials. And the jacket’s built-in mid-layer is made with lighter, more breathable OSMOS Light while the upper arms are wrapped in windproof warp-knit 3L ZigZaggy Foam.Assos Layering System The EQUIPE RS Winter Jacket forms part of a cycling layering system, engineered to work beautifully together. For most winter conditions it works perfectly as a stand-alone winter jacket. However, for extremely harsh conditions use it with an Assos Thermobooster Mid Layer for added insulation. For extra coverage in humid or extra-demanding weather, deploy your Clima Capsule Jacket over the top. Either of these Assos layers conveniently stows in the Winter Jacket's Thermobooster Pod along the upper back panel. Assos have thought of everything.Features:Materials: 16% Polyester, 50% Polyamide, 15% Elastane, 19% PolypropyleneSPHERE Light front panel - a patented 3L windproof, waterproof, and breathable material - Breathability: MVP 30,000g/m2/24h - Water Column 10,000mmInnermost layer in SHERE Light - bi-stretch circular knit adds light insulation and helps pull moisture away from the layers belowSPHERE Medium - Used for the upper back and forearms - thickest version ofSPHERE - Breathability: MVP 20,000g/m2/24h - Water Column 10,000mmZigZaggy Foam - upper sleeves are made with this 3L warp-knit, wind-blocking fabric, which features a foam-like core and brushed fleece interiorOSMOS Heavy - warp-knit is used along the back panel. The heaviest in brushed OSMOS family (290g/m2), featuring asymmetrical stretch and a soft, durable constructionDiffusor - An ASSOS-exclusive sewing construction that creates dual 'valves' on the fronts of the shoulders, drawing in cool air for added ventilationDouble-Slider Asymmetrical Zipper - Reversed Camlock design, metal construction, offset at the collar for added comfortThermobooster Pod - Fourth pocket along centre back panel, engineered to store the Thermobooster Mid Layer or Alleycat Clima Capsule JacketTriple Ramp Pockets - three textile-lidded pockets optimally located for ease of accessaeroFit: Assos' trimmest, speed-focused fit that's tighter and more compressive than racingFit. May feel restrictive out of the riding position but feels like a second skin while ridingBuy Assos Cycle Clothing from Chain Reaction Cycles, the World's Largest Online Bike Store.