Seagull MARITIME SWS GT PRESYS II Acoustic Guitar (Mahogany Burnt Umber)The Maritime SWS Mahogany Burnt Umber GT, as with all SWS models, features all solid wood construction with a Select Pressure Tested solid spruce top and solid mahogany back & sides. This model features the stunning, rich & vintage look of its Burnt Umber finish, with a Gloss Top (GT) & the beautiful satin sheen of semi gloss back & sides. Our Custom Polished Finish provides excellent protection but at the same time is extremely light and elastic.