The Martin HD-28MP Features Herringbone Trim Madagascar Back & Sides and Performing Artist Neck.

Full specs are as follows:

MODEL: HD-28MP
CONSTRUCTION: Mahogany Blocks/Dovetail Neck Joint
BODY SIZE: D 14-Fret
TOP: Solid Sitka Spruce
ROSETTE: Style 28
TOP BRACING PATTERN: Standard ''X'' Scalloped
TOP BRACES: Solid Sitka Spruce 5/16''
BACK MATERIAL: Solid Madagascar Rosewood
BACK PURFLING: HD Zig Zag
SIDE MATERIAL: Solid Madagascar Rosewood
ENDPIECE: Grained Ivoroid
ENDPIECE INLAY: Black/White Boltaron
BINDING: Grained Ivoroid
TOP INLAY STYLE: Bold Herringbone
SIDE INLAY: none
BACK INLAY: Black/White Boltaron
NECK MATERIAL: Select Hardwood
NECK SHAPE: Performing Artist Profile
NUT MATERIAL: Bone
HEADSTOCK: Solid/Diamond/Square Taper
HEADPLATE: Solid Madagascar Rosewood
HEELCAP: Grained Ivoroid
FINGERBOARD MATERIAL: Solid Black Ebony
SCALE LENGTH: 25.4''
# OF FRETS CLEAR:14
# OF FRETS TOTAL: 20
FINGERBOARD WIDTH AT NUT: 1-3/4''
FINGERBOARD WIDTH AT 12TH FRET: 2-1/8''
FINGERBOARD POSITION INLAYS: Style 28
FINGERBOARD BINDING: none
FINISH BACK & SIDES: Polished Gloss
FINISH TOP: Polished Gloss ; Sunburst available at additional cost.
FINISH NECK: Satin
BRIDGE MATERIAL: Solid Black Ebony
BRIDGE STYLE: Belly
BRIDGE STRING SPACING: 2-3/16''
SADDLE: 16'' Radius/Compensated/Bone
TUNING MACHINES: Chrome Enclosed w/ Large Buttons
RECOMMENDED STRINGS: Martin SP Lifespan Phosphor Bronze Medium Gauge (MSP7200)
BRIDGE & END PINS: White w/ Black Dots
PICKGUARD: Black
CASE: 545E Geib style
INTERIOR LABEL: none
ELECTRONICS: optional