Assos LL. Uno_s 5 Bib Tights With the introduction of the LL.uno_s 5, we are addressing the need of the racing cyclist who desires a less complex, lighter & more essential product approach. Composition: 80%PA &8211; 14%EA &8211; 6%PES s 5 Insert HOW TO USE IT? The LL. Uno is available in two versions: with or without the s 5 insert. With the insert, you use your LL. Uno as the only layer, directly on your skin. Without the insert, you wear them over your shorts or knickers & the tights become more versatile as you can also use them for other outdoor activities. ALS TIPS: When temperatures drop, you can extend the LL.uno's mission range by wearing a kneewarmer or legwarmer underneath. THE CONSTRUCTION: The LL. Uno is based on the ultimate long-leg pattern platform of its big brother, the LL.607. Also, in terms of material quality, it uses the same high quality RX fleecy type fabric all over. What we have eliminated is the front panel air Block insert on the abdomen, replacing it with a