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Sea to Summit says:
Sea to Summit’s 30g egg-sized Ultra-Sil™ Nano™ Shopping Bag is our most compact and reusable alternative to disposable shopping bags. Super lightweight and packable, our Ultra-Sil™ Nano™ Shopping Bag is easily stashed in your car, pocket, purse or keyring so it’s always on-hand for that unexpected trip to the store. Constructed using lightweight 15D siliconised Nylon, its generous 25L capacity supported by reinforced bar-tacks and streamlined panelling, easily supports loads in excess of 20kg—a lot more than you’ll comfortably carry over your shoulder! Packing down to the size of an egg with strength well beyond its 30g weight, our 25L Ultra-Sil™ Nano™ Shopping Bag easily transports the heaviest of shopping loads.