The Izumi White/Black premium block bottom bags are made from extra sturdy 170 gsm white FSC® kraft paper and feature a sleek graphic design in white and black. Thanks to their sturdy block bottom, they stand upright nicely and offer extra space for gifts and products. These bags are made from extra sturdy 170 gsm kraft paper and clearly stand out from standard thin gift bags. You can immediately feel and see the difference in quality.