Handmade - Handmade tyres combine many attributes to create the most comfortable and low rolling resistance tyres.
Sealed Silk - Silk is a strong, soft, natural fiber casing that allow the casing and tire to perform at ultimate level.
Soft - Some of their tyres utilise a softer durometer tread rubber so the S also stands for Softer and more Supple. The softer S treads are especially used on track and cyclocross tyres.
Latex - Latex tubes are stronger, lighter, super supple, absord shock and conform to whatever objects impact it, reducing rolling resistance.
PPS - The Puncture Protection Strip is a special fabric placed between a tyre's tread and casing to increase resistance to punctures.