Lightweight men's fleece top from Rab that offers great breathability in a trim and athletic fit. The Nucleus Pull-on uses a grid like polyester fabric on the inside which is extremely effective at wicking moisture and keeping a good level of insulation. This is a classic top with a long venting zip that performs a lot better in active use then a bog standard fleece, to boot it also looks quite good, with contrasting stitching and pleasing colours.
You can't go wrong with the Rab Nucleus Pull-on. Many similar fleeces, which differ only by using the Polartec branding for the fabric, retail for easily double the price and offer same performance. A firm favourite in my winter wardrobe.
Slimmer than typical Rab. From our staff member: "I am about chest 39" and normally find myself between sizes S and M for a lot of Rab garments. If I try a Small size in Nucleus pull-on it is absolutely skin tight with room just for a t-shirt underneath. In size Medium though it offers a very reasonable trim fit which isn't baggy."
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