If you are a fan of TR90 frames and Rimless Sunglasses, you may want to check out this pair of sunglasses made from 100% organic and recyclable materials. They are called Ryder Dusty, which are a special TWIG edition of the Ryder line sunglasses made by CaliSons, which are made in honor of the surfer Grant "Twiggy" Baker.
The Ryder Dusty are made of non-oil based Italian organic zyl acetate and forest certified bamboo with the frame being made using deluxe thick slab cut Italian Acetate (made from natural cotton fibers and tree pulp); while the temples are made of eco-friendly bamboo.
The spring hinges are made of stainless steel, and the 2mm polarized CR39 Lens have a scratch resistant coating with UVA/B protection. Along with the pair of sunglasses you get a cleaning cloth, pouch and a bamboo case.
The Ryder Dusty frame size measurements include 51mm eye size (lens diameter), 20mm bridge size and 140mm arm length.
They weigh just 0.70 lbs (317 grams). CaliSons provides a 1 year limited warranty which covers manufacturer and material defects.

The Verdict
The Dusty Ryder unisex sunglasses are designed in Venice Beach (California) and are great for those with allergy to certain materials as the frame material is hypoallergenic and non-petroleum based. Both Acetate and bamboo are extremely flexible lightweight and durable, making the Dusty Ryder a very robust and stylish pair of sunglasses. Check out the Dusty Ryder bamboo sunglasses with acetate frames and polarized lenses.