PRODUCT DESCRIPTION Ultra-light, ultra-comfortable and maximum capacity… It is the ideal trail running back-pack for running from 10 to 200 km ! LUNAR-POCKET This clever opening doubles up as a pocket for gels, energy bars and even your smart phone! The convenient ergonomic design is great for trail running, avoiding unnecessary movement when reaching for your nutrition, even during fast downhill running or hard ascents. SHOCK-ABSORBER The 360° compression dampens the “shock wave” effect on muscles, veins and joints. ULTRALIGHT Your COMPRESSPORT® do not retain water and will remain featherlight in all conditions.