Martin D Biosphere® III Dreadnought Robert Goetzl Polar Bears

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Celebrate Earth Day with the D Biosphere® III, the latest chapter in Martin's commitment to sustainability and environmental awareness. Crafted entirely from FSC®-certified woods, this guitar is more than an instrument—it's a call to action. At its heart is a captivating work of art by Robert Goetzl, depicting a tender moment between a polar bear mother and her cub, set against a backdrop of icy blues and a warm, glowing sky. It’s a scene of beauty and fragility, echoing the uncertain future these majestic animals face. This model is a tribute to Polar Bears International®, a nonprofit dedicated to the conservation of polar bears and the Arctic sea ice they depend on. C. F. Martin & Co.® has made a generous donation to support its vital work, helping to address both short- and long-term threats to these incredible animals and ensure they continue to roam the sea ice for generations to come. Featuring a Dreadnought body made of solid sapele back and sides and a solid Sitka spruce top, the D Biosphere III produces a rich, resonant tone that mirrors the voice of our planet—bold, clear, and deeply moving. Thoughtful touches like European flamed maple binding and sapele fingerboard inlay make it as beautiful to play as it is to behold. Every strum of this guitar reminds us of the deep connection of all life and the importance of preserving it for generations to come. Join Martin in raising awareness and protecting our planet, because nature’s song deserves a stage.

Polar Bears International is a registered trademark of Polar Bears International, Inc. and is used under license.

This product is produced under licensed ArtGuitar® Patented Technology covered by one or more of the following US patents US 7,736,706, US 7,737,349, US 7,470,455, US 7,895,967 or US 8,192,040.

Specifications

Overview
Strings: Luxe by Martin® Kovar™ SP Core Strings - Medium
Body Size: D-14 Fret
Finish Top: Satin
Construction: Simple Dovetail Neck Joint
Back and Side Finish: Satin
Bracing Pattern: Forward Shifted X-Brace
Scale Length: 25.4"
Brace Shape: GE-Scalloped
Fingerboard Width at Nut: 1 3/4''
Top Material: Sitka Spruce
Neck Shape: Modified Low Oval
Back Material: Sapele
Neck Taper: High Performance Taper
Side Material: Sapele
Electronics: None

Top
Top Color: Custom Ink
Bridge Style: Modern Straightline - Drop in Saddle
Binding: FSC® Certified European Flamed Maple
Bridge String Spacing: 2 5/32"
Top Inlay Material: Black Fiber Stripe
Bridge Material: FSC® Certified Ebony
Top Detail: FSC® Certified Wood
Bridge Pin Material: Bone
Pickguard: None
Bridge Pin Dots: None
Pickguard Inlay: None
Saddle: Compensated Bone
Rosette: None
Saddle Radius: 16"

Body
Brace Material: FSC® Certified European Spruce
Back and Sides Color: Natural
Brace Size: 5/16"
Back Detail: FSC® Certified Wood
Back Purfling/Strip: None
Back Inlay Material: None
Heelcap: None
Side Detail: FSC® Certified Wood
Endpiece: None
Side Inlay Material: None
Endpiece Inlay: None

Neck
Neck Material: FSC® Certified Select Mahogany
Fingerboard Material: FSC® Certified Ebony
Finish Neck: Satin
Fingerboard Width at 12th Fret: 2 1/8''
Neck Color: Natural
Fingerboard Inlay Style: Dots
Number of Frets Total: 20
Fingerboard Inlay Material: FSC® Certified Sapele
Neck Joins Body At: 14th Fret
Fingerboard Binding Material: None
Side Dots: Aluminum

Headstock
Headstock Shape: Solid with Square Taper
Tuning Machines: Nickel Open Gear
Headplate Material: FSC® Certified Ebony
Knob: Butterbean
Headplate Logo Style: Script Authentic 1933 Overlay
Nut Material: Bone
Headplate Binding Material: None

Misc
Case: Softshell
Label: Multiple Paper Labels
Pleked: true