Our parachute product size estimate recommendation is as follows. WEIGHT: Estimated to be 35 - 45 -XS / 45 - 52 -S / 52 - 58 - M / 58 - 64 - L. However, we recommend that you buy 1 size larger than your own size and if you are over 64 kilos, we recommend that you buy the XL size. SIZE XL is 77 Kg. how much?