The Core Classics
Tried, true, and always in rotation
Clean, polished silhouettes designed to wear well and wear often. Reliable fits with performance stretch, moisture wicking comfort, and our signature UPF fabric. The foundation pieces you reach for again and again.
![Navy Paneled Long Sleeve Sun Shirt - [Kastel]](http://kasteldenmark.com/cdn/shop/files/P_LS24NA_01_WEB_{width}x.jpg?v=1769034544)
![Navy Paneled Long Sleeve Sun Shirt - [Kastel]](http://kasteldenmark.com/cdn/shop/files/P_LS24NA_01_WEB_600x.jpg?v=1769034544)
![Black with Black Trim Long Sleeve Sun Shirt - [Kastel]](http://kasteldenmark.com/cdn/shop/files/P_CHBB_02_WEB_{width}x.jpg?v=1753070902)
![Black with Black Trim Long Sleeve Sun Shirt - [Kastel]](http://kasteldenmark.com/cdn/shop/files/P_CHBB_01_WEB_e_{width}x.jpg?v=1753070901)
![Black with Black Trim Long Sleeve Sun Shirt - [Kastel]](http://kasteldenmark.com/cdn/shop/files/P_CHBB_02_WEB_600x.jpg?v=1753070902)
![Black with Black Trim Long Sleeve Sun Shirt - [Kastel]](http://kasteldenmark.com/cdn/shop/files/P_CHBB_01_WEB_e_600x.jpg?v=1753070901)
![White with White Trim Sun Shirt - [Kastel]](http://kasteldenmark.com/cdn/shop/files/P_CHWW_02_WEB_{width}x.jpg?v=1753070903)
![White with White Trim Sun Shirt - [Kastel]](http://kasteldenmark.com/cdn/shop/files/P_CHWW_01_WEB_{width}x.jpg?v=1753070903)
![White with White Trim Sun Shirt - [Kastel]](http://kasteldenmark.com/cdn/shop/files/P_CHWW_02_WEB_600x.jpg?v=1753070903)
![White with White Trim Sun Shirt - [Kastel]](http://kasteldenmark.com/cdn/shop/files/P_CHWW_01_WEB_600x.jpg?v=1753070903)