the selle italia slr team edition saddle black-red 2016 saddle is designed for the practice of road cycling. it provides a high level of comfort and lightness. it is focused for cyclists looking for the highest quality during the routes the user. 30% carbon compound and also carbon rails make the weight of the saddle just 140 grams. it incorporates the covering in lorica technical material characterized by its excellent resistance to abrasion and durability. the selle italia slr team edition saddle black-red 2016 saddle features the model s1, recommended for riders who weigh less than 75 kg and have little flexibility. features:-use in road cycling. -saddle s1 model: for riders who weigh less than 75 kg and have little flexibility. -weight: 140 grams. -carbon rails. -30% of carbon composite. -reinforced kevlar lining of lorica. -silicone with differentiated thickness gel inserts. the saddles from selle italy are distinguished into two categories depending on the girth of the user; "s" and "l". the "s" range is focused on thin and little corpulent cyclists. on the contrary, "l" models are designed for users larger, with more than 75 kg weights. once chosen category (s or l), different models are classified in classes (1, 2 and 3): number 1 is for riders with little flexibility, which means that they will be more comfortable with a saddle that facilitates weight in the perineal area, not in the genital. type 2 is more versatile and who are not classified as 1 or as 3-oriented. finally, in the category 3 found models for more flexible bikers who are able to lean more on saddle using its entire length. in summary:-s1: for riders who weigh less than 75 kg and have little flexibility. -s2: for riders who weigh less than 75 kg and have a normal flexibility. -s3: for riders that weighing less than 75 kg and have a lot of flexibility. -l1: for riders who weigh 75 kg or more and have little flexibility. -l2: for riders who weigh 75 kg or more and have a normal flexibi