The Boys Extol Zip-Off Walking Trousers, from Regatta, are quick drying, durable & water repellent, to keep you comfortably dry & cool while walking & travelling. The Boys Extol Zip-Off Walking Trousers are made from stretch fabric & have a part elasticated waist for extreme comfort. The Boys Extol Zip-Off Walking Trousers offer the versatility of being able to easily zip-off at the knee to convert from trousers to shorts when the weather is good.