DESCRIPTION LOC/Precision Parachutes use a low porosity rip-stop nylon at 1.9 ounces. It is a urethane coated, calendared rip-stop that allows almost NO air through. Yes, it is a bit heavier. But! It will have a slower decent rate than a lighter, un-coated material in a same sized parachute! PARACHUTES 14" Parachutes: 14″ (actual is 15″ diameter) parachute with 50mm spill hole. 6 lines. 18" Parachutes: 18″ parachute with 50mm spill hole. 6 lines. 21" Parachutes: 21″ parachute with 65mm spill hole. 6 lines. 24" Parachutes: 24″ parachute with 72mm spill hole. 6 lines. 28" Parachutes: 28″ Parachute with 84mm spill hole. 8 lines. 36" Parachutes: 36″ Parachute with 106mm spill hole. 8 lines. 42" Parachutes: 42″ parachute with 125mm spill hole. 10 lines. 50" Parachutes: 50″ Parachute with 140mm spill hole. 10 lines. 58" Parachutes: 58″ Parachute. NO spill hole. 12 lines. 78" Parachutes: 78″ Parachute. NO spill hole. 16 lines. 96" Parachutes: 96″ 16 line multi-panel parachute. NO spill hole. For the Big guns!