Oliver Spencer Garrison Long Sleeve Shirt (Loose Fit) Nielson Navy

In our opinion, the overshirt is a wildly underused garment in the canon of modern menswear, especially in the autumn and winter months when it provides an extra layer of warmth but also much need texture and tonal depth. This loose-fit Garrison shirt ticks every box, and that rich navy tone give you all the versatility you need to build slick modern outfits around it.