DaySoft Silk is a daily replacement lens from the manufacturer Prescription Logistics Limited
"When ordering we do not require the input of BC (Base Curve) or DIA/OD (lens diameter) because daysoft is made from an advanced soft lens polymer utilising a unique Uni-FitTM
The Uni-FitTM design of daysoft means that you can upgrade from disposable soft lens brands having a BC between 8.3 and 9.2 mm and Diameter between 13.8 and 14.5mm."
Standard Base Curve (BC) of this lens: 8.60 mm
Standard Diameter (DIA) of this lens: 14.20