Our Top Shelf collection features our most elevated pieces with an emphasis on ultra-premium fabrics and next-level details. This button-up is made with incredibly soft and breathable Tencel and features a hidden button-down collar. Finished with goosefoot and shanked buttons and our signature Tweener Button which is hidden between the 2nd and 3rd button to give you the perfect amount of coverage, this is quite simply one of the best shirts you'll own. johnnie-O Top Shelf Button Up Shirt - Feldman in Blue Size: Medium.