as shown in fig1 - 3 , the suit is a garment where a pair of trousers 10 and a body - piece 20 , which are preferably made of leather , are inseparably joined together , with a conventional elastic insert 13 limited to the bottom of the back . various zip fasteners are provided , in particular that indicated by 21 , along the vertical middle axis of the body - piece 20 , on the front of the latter , and those ( not shown for the sake of simplicity ) at the bottom ends of the calves 12 and the sleeves 22 . according to the invention , elastic inserts are incorporated in the suit and joined by means of perimetral stitches ( for the sake of simplicity not shown ) to the adjacent parts of the suit . the ring - shaped inserts 15 form part of the legs of the pair of trousers 10 , while the inserts 25 in the form of an overturned “ l ” form part of the body - piece 20 . all the said inserts are made using a technique which is well - known to specialists in the sector , namely by joining a layer of very thin elastic fabric to a layer of leather — and if necessary also to an intermediate layer of reinforced fabric : a series of closely arranged transverse stitches s are performed when the layer of very thin elastic fabric is fully tensioned with the result that a plurality of folds f are created when the suit is in rest condition . the ring - shaped inserts 15 which form part of the pairs of trousers 10 extend in fact continuously on either side of the knees 16 , namely the articulation between the thighs 18 and the calves 12 . each of these inserts comprises in fact — as can be seen from their plan view extension shown in fig6 a : a central strip 152 designed to be arranged at the bottom of the thighs 18 above the knee 16 ; two connecting parts 154 which are designed to extend along the sides of the calf 12 ; two tapered wings 156 which extend further downwards and backwards along the calf until the respective end edges are located closely to one another . in this way the configuration assumed by a suit according to the invention in the rest conditions ( which are those shown in fig1 to 4a ) is such that the angle formed by the axis of each calf 12 with the axis of the respective thigh 18 is between 80 and 100 degrees and preferably about 90 degrees — see fig5 b . if it is considered that the angle formed by the axis of each calf 12 with the axis of the respective thigh 18 in the most common riding condition , namely non - competitive riding , of a motorcycle is precisely between 80 and 100 degrees , and preferably about 90 degrees , the present invention offers ergonomic characteristics such as to fully satisfy the requirements of the wearer during the first of the abovementioned conditions of use . in this configuration the inserts 15 have a plurality of folds f which are spaced by grooves and are more or less equidistant , as can be seen particularly well in fig4 a and 5b . moreover , this does not adversely affect in any way other conditions of use of the suit , as shown : in fig5 a , relating to the walking — or in any case erect — position of the person wearing the suit , where the abovementioned angle is close to 180 degrees , for example 165 degrees ; in fig5 c , relating to a first condition of competitive riding of the motorcycle , where the abovementioned angle is about 60 degrees ; and in fig5 d , relating to a second condition of competitive riding of the motorcycle , where the abovementioned angle is even less than 45 degrees , for example 36 degrees . as is clear when comparing fig5 b with fig5 a , the folds f of the insert 15 are more compact above the knee 16 and more spaced out along the calf 12 , while in fig5 c and 5d the folds f of the insert are more spaced out above the knee 16 and more or less compact along the calf 12 . fig7 is a variant of the invention where the tapered wings 156 b of the insert 15 extend as far as the bottom end of the trousers 10 of the suit , practically as far as the zone in the immediate vicinity of the heel . other variations envisage the incorporation of ring - shaped elastic inserts in the sleeves 22 of the body - piece 20 of the suit and on either side of the elbows , namely the articulation between the arms and forearms , so that the configuration of the body - piece in the rest condition of the suit is more or less the same as that already described for the trousers and also corresponds to the most frequent riding condition of the motorcycle . in the suits of conventional design , the inserts applied above the knees ( as for example indicated by the reference number 17 in fig4 b ) generally have a limited extension and in any case do not extend on either side of the knees , but only above them . as shown in fig4 b , the angle formed by the axis of each calf 12 with the axis of the respective thigh 18 is about 130 degrees , namely quite different from the angle assumed in any other position when riding a motorcycle , thereby demonstrating the less ergonomic design of conventional suits which do not satisfy fully the first of the abovementioned conditions of use . as shown in fig8 - 10 , the elastic inserts 25 incorporated in the body - piece 20 of a suit according to the invention have a first side 252 which extends along the sides of the trunk underneath the armpits , and a second side 254 inclined upwards , namely towards the shoulders 24 a . over the whole of the extension of the inserts 25 the folds f assume , a position which is inclined at an angle . alpha . of about 45 degrees with respect to the longitudinal axis t of the body - piece 20 and , in particular ; favours raising of the arms 22 a — see fig8 — and arching of the back 26 a — see fig9 — during riding of the motorcycle . this is due to the fact that the inserts 25 are able to withstand vertical and horizontal tensile stresses represented by the double pointed arrows in the drawing . as shown in fig8 - 10 , each insert comprises a plurality of longitudinal folds f that are substantially parallel to each other and uniformly spaced to each other each of the folds is inclined at an angle of substantially 45 degrees with respect to an axis of the body - piece and extending downwardly from the back toward the front on both the first and second sides ; the plurality of folds favors the raising of arms and arching of a back in the common riding position wherein the folds are in such uniformly spaced position , but able to withstand both vertical and horizontal stresses . other variations and embodiments may be developed within the scope of protection defined by the appended claims . in particular , it must be pointed out that the object of the invention also includes the trousers on their own and body - piece on its own and not only a suit .
elastic inserts are incorporated in selected zones such as the legs and arms of an article of garment for motorcyclists , for example a leather suit , said inserts having a shape and manner of application such that the configuration of the garment in the rest condition corresponds to the position of the person wearing the garment when riding a motorcycle , but also allows said person to move freely when not sat in the saddle of the motorcycle .