The Chamois Pants are made from the 4 way stretch Soft Shell fabric known as Exolite 210. The double weave construction & smooth face to this fabric resists abrasion, while the soft inner lining is lovely & comfortable next to skin. These trousers are great for all year round use as a versatile, wind resistant & breathable option. They have a women’s specific Alpine Fit with a regular fit ankle. The combination of the tailored Alpine Fit block, with its high waist band allows for a great range of movement & lower back coverage, & the Regular Fit Ankle means these pants are incredible versatile; whether you are walking, climbing or mountaineering, it will accommodate low volume footwear with the ankle gusted zipped up but for a more relaxed fit you can unzip to allow room for bulkier footwear. EXOLITE 210 stretch double weave Soft Shell fabric Women’s Alpine fit with regular fit ankle 2 zipped hand pockets 2 zipped thigh pockets with integrated mesh lining for venting Integrated belt with double press-stud waist closure Microfleece lined waistband for enhanced comfort Low volume lower leg; ankle zips with internal gusset panel Drawcord channel at hem (drawcord not included) For all you kit geeks out there, the links below will take you to Mountain Equipments Information pages where they will explain this items different fabrics & constructions techniques in greater detail. Exolite Most people are too scared or do not really understand the importance of washing their equipment in the correct manner, all equipment needs to be maintained properly for it to perform. It is actually really easy! Feel free to give the shop a call from 09:00 until 17:30 Monday to Saturday (19:30 on a Wednesday), as we are always happy to help & give friendly advice. Or if you are reading this outside our normal opening hours here is a useful link to Trekitts recommended product for washing & caring for kit. Nikwax Tech Wash Nikwax TX-Direct I hope this helps.