It keeps really really warm!
I bought the apex -6 and was very curious if its really warm enough for temperaturs about 0 °C, because its not Norm EN13537 confirmed. I tested it in the Pyreness on the GR11 this year in September. Actually it warms better than my Deuter Exosphere -4. The straps for the sleeping pad also work very good. Normally 5 stars, but the transportation costs for germany were higher than expected. The website told me it costs 40 euros, but actually the transport in germany did cost another 70 euro, so 110 euro together :/ Please warn international customers about these extra costs. Im still very happy about my new product, its worth the price! Greetings from germany