This info is from the bear archery website regarding future wood.
Fred Bear introduced FutureWood in the 1970's and was re-introduced in the Bear line in 2013 due to request from customers wanting natural hardwoods reminiscent of the early 1970 era bows. This manufacturing process gives completely new physical properties to the wood in the handle section. A pressurized vacuum fills all the natural pores in the wood, increasing its weight and greatly strengthening it. After baking, the handle is no longer natural wood, but Futurewood: It is virtually impossible to warp, check, or crack. Yet, all the grain and original beauty of the natural wood are intact.