The best selling ultralight & compact air mattress from Therm-a-Rest s Fast & Light series has long been the Therm-A-Rest Neo Air 8482 XLite 8482 Air Mattress This mattress offers exceptional warmth-to-weight ratio & this SMALL version saves even more weight weighing in at only 230g with a pack size that is comparable to a one litre water bottle making it ideal for backpackers & hikers The Neo Air 8482 XLite 8482 offers astounding warmth-to-weight ratio thanks to its Therma Capture 8482 reflective layers & the Triangular Core Matrix 8482 construction works to minimise heat loss thanks to its two stacked layers of triangular baffles & at the same time offers an unrivalled level of stability & comfort The Neo Air 8482 XLite 8482 is made from low-bulk materials making mattress the most compact Neo Air mattress ever & durable fabrics & a tapered design make this Neo Air mattress almost 15 lighter than the original