Allbirds Mens Risers Natural White Ivory Casual Shoes Sneakers Retro inspired Trainers 11. These sneakers are in excellent condition see pictures DETAILS Sharp angles meet sustainable materials in our edgiest shoe ever. Literally. Lace them up and turn heads while treading lighter on the planet. Best For: Everyday wear and comfortably making an entrance Sustainability Times Three: The first upper to feature three of our most sustainable materials: organic cotton, Tencel™ Lyocell Ripstop, and ZQ Merino Wool Super Natural Hug: Soft, merino wool-lined heel helps ankles feel secure and supported Materials: Upper: Organic Cotton Canvas, Tencel™ Lyocell Ripstop, ZQ Certified Merino Wool Midsole: SweetFoam® Outsole: Natural Rubber Where It’s Made: Vietnam.