Any hiker knows that the right gear can make all the difference when you’re out there traversing the wilderness. Now, you can pick up a pack that does even more. Osprey Packs, in partnership with the National Park Foundation, have released a pair of special edition bags that benefit the agency. It’s the perfect birthday gift for the National Park Service’s centennial year.

The Osprey Kestrel 32 National Park Service Pack is being sold exclusively at REI and retails for $149.95. It’s a lightweight pack with features to accommodate a variety of adventuring, and is designed to keep you comfortable even in warm or rainy weather. For more specifics on the gear, check out the product page which includes an in-depth video from the retailer. The National Park Foundation Trip 20 can be found through Osprey Packs and sells for $60.00. (As reflected in the price, it’s a simpler pack for “light and fast day hikes.”)

As part of the partnership, Osprey has pledged a minimum $25,000 donation to the NPF through the sale of the packs, and is supplying the foundation with Jet 12 kids packs as well as Moki kids hydration packs for use in the Open OutDoors for Kids program, an initiative dedicated to underserved youth and getting kids outdoors.

Back when the news was first announced last fall, Sam Mix, Manager of Corporate Outreach at Osprey Packs said: “Osprey is honored to work in partnership with the National Park Foundation during this centennial year and raise money to protect America’s special places, connect people to parks, and inspire the next generation of park stewards. We are thrilled to be part of this celebration and hope the ‘Find Your Park/Encuentra Tu Parque’ movement inspires national park enthusiasts and stewards for generations to come.”

Is wearing a National Park Foundation logo in a National Park akin to wearing a band’s T-shirt to their concert? Perhaps, but rock on.