Ferrino Colibri is the perfect sleeping bag to be used during your summer travels and campsites and thanks to its lightness you can also use it as a sheet bag! The external fabric is in nylon, while the inside is in cotton, so as to be soft in contact with the skin, allowing you to rest comfortably. In addition, weighing only 600g and thanks to the small footprint it can accompany you on your travels without you almost noticing! Ferrino Colibri sleeping bag liner