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Martin’s Earth Day Tribute to the Polar Bears International Foundation





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Martin’s beautifully adorned Biosphere instruments are both a celebration of the earth’s wondrous environments and a call to action to preserve them, with this Earth Day 2025 D Biosphere III sporting captivating arctic imagery by Robert Goetzl. In fact, the polar bear scene that emblazons this guitar’s top is Martin’s tribute to the Polar Bears International non-profit organization, which works to conserve these majestic animals and their at-risk environment. Beneath its printed finish, the D Biosphere III boasts a premium Martin dreadnought foundation that’s comprised entirely of FSC-certified tonewoods, starting with a solid Sitka spruce top. Matched with solid sapele back and sides and forward-shifted X-bracing with Golden Era scalloping, the D Biosphere III booms with the big-bodied bass, superb definition, and supremely warm sound that recalls the roar of Martin’s Style 18 series. Plus, the fast-playing Modified Low Oval-profile select mahogany neck affords you effortless navigation of the ebony fingerboard’s 20 frets and comfortably spaced 1.75-inch nut width. Even the trim of the D Biosphere III consists of sustainably sourced materials, from the European flame maple binding to the sapele fingerboard inlays. Celebrate Earth Day 2025, show your support for the environment, and savor Martin’s iconic dreadnought drawl all at once with the Martin D Biosphere III!





Related Videos: D Biosphere III Acoustic Guitar - Printed Top with Polar Bear Theme


Custom-printed arctic imagery





The polar bear scene that sits atop this guitar’s solid Sitka spruce top is more than a mere aesthetic flourish; it represents Martin’s steadfast support of the Polar Bears International organization. Martin fully stands behind this foundation’s mission of conserving the world’s polar bear population and their increasingly at-risk environment. In fact, the tender scene atop this dreadnought is purpose-made to represent the precarious position of these magnificent animals. Thus, every show you perform at, every session you record, and every conversation started by this guitar’s captivating finish aids the awareness of the polar bear’s threatened status and the admirable work of Polar Bears International.





Serial M2946487


Serial M2946487


Classic tonewoods, zero guilt





The D Biosphere III’s spruce top and sapele back and sides deliver clear tone that harkens back to classic Martin recipes, but with a twist: they were responsibly sourced and have receipts to prove it. This Biosphere dreadnought is 100% FSC-certified, which means it’s won the seal of approval from the Forest Stewardship Council, the group that oversees one of the world’s leading voluntary sustainability programs. What’s more, this Biosphere dreadnought contains zero plastic, a rarity in the guitar world that showcases a future that’s packed with clean oceans and beautiful instruments, not just one or the other! For example, the bridge is crafted with an FSC-certified ebony base and bone pins. On top of being green, these premium components let the true nature of tonewoods and strings shine by offering superior performance to plastic at every turn.





Setting the standard for steel strings everywhere





If there were such a thing as a “standard” acoustic guitar shape, it would undoubtedly be the dreadnought. It’s Martin’s most iconic model and a key component to the cannon-like projection and booming bass response that’s defined the Nazareth sound since the D-18 and D-28 appeared in the early 1930s ? and even earlier if you count Martin’s “Ditson” models! Whether you’re a flatpicking bluegrass phenom or a singer/songwriter strummer, a Martin dreadnought will provide you with a lifetime’s worth of superior steel-string tone.





Serial M2946487


Serial M2946487


Martin D Biosphere III Features:


Celebrate Earth Day 2025 and the admirable work of the Polar Bears International foundation with this exquisitely adorned Biosphere dreadnought


Custom ink artwork by Robert Goetzl depicts a tender arctic scene to raise environmental awareness


Plastic-free construction, comprised completely of FSC-certified timbers


Solid Sitka spruce top with forward-shifted X-bracing and Golden Era scalloping resounds with a deep, responsive, and dynamic projection


Solid sapele back and sides sing with a crisp, focused character and ample warmth


Comfortable select mahogany neck in Martin’s fast-playing Modified Low Oval profile


Ebony fingerboard with charming sapele inlays


Eye-catching European flame maple body binding


Old-school rectangular ebony bridge with bone pins


Rock-solid nickel open-gear tuning machines


1.75-in. nut width accommodates flatpickers, strummers, and fingerpickers with equal comfort