The Ultra-Sil Nano Shopping Bag is a super lightweight, strong and compact ... The Ultra-Sil Nano Shopping Bag is a super lightweight, strong and compact reusable bag that packs down to the size of a golf ball. Constructed using lightweight 15 denier siliconized nylon, its generous 25L capacity is reinforced by bar-tacks at the stress points, so it could support a load of up to 45 lbs / 20kg. The tiny packed size also clips easily onto a key ring, a carabiner, or it can also tuck into a purse or a jacket pocket, so it&';s never out of reach. Features Ultralight 15D high strength Ultra-Sil Nano nylon fabric Exceptionally compact packable design Large 25L carrying capacity Large carry handles can be slung over your shoulder or comfortably held in your hand Siliconized nylon fabric for easy packing and water resistance Bar-tacks at stress points for added strength