This Premium Warm Lightweight Envelope Sleeping Bag is made from a durable rip-resistant outer shell with a warm 200 GSM insulated filling. It will keep you nice and warm in temperatures down to 15C but has an extreme limit of -3C meaning you are safe to use it in colder weather too. It has the perfect warmth-to-weight ratio to ensure comfort while being lightweight and easy to transport or store away. Its also fully machine washable for easy cleaning after your adventure. This sleeping bag is perfect for indoor use, sleepovers or outdoors during the summer. Active Era Lightweight Summer Sleeping Bag - 200GSM Compact Envelope Design - 2 Seasons in Blue Size: Single