Introducing the Belstaff Mineral Caster Seersucker Shirt. Ist. Core. Helpers. StringHelper. RemoveHtmlTags("{@@=Ist. Core. Helpers. StringHelper. ToProperCase("The Mineral Caster Shirt in Skyline Blue. A classic collared, button-down shirt woven with a hint of stretch for added comfort. Washing Instructions: Wash Max 30°C - Mild Process. Wash Inside Out With Similar Colours. Composition and Material: 97% Cotton, 3% Elastane. Casual Shirt Design: Plain. Casual Sleeve Length: Long. Fit: Regular. Material: Cotton Mix.. Colour: blue