Grubs Frostline 5.0™ Ladies Wellington Boots are high quality, hand finished, ladies neoprene insulated wellington boots with a reinforced toe and heel. The Frostline 5.0™are high performance boots that are ideal for trekking the hills or simply walking the dog. The upper boot uses the Insu-foam Ultra ™ lined with a highly effective moisture wicking lining which keeps your feet warm and dry in a range of -10°C to 30°C. These boots are designed using the latest technology and are finished off with a 2mm tough natural rubber outer layer for superb protection from the undergrowth.  Designed to stretch by 150% so they can offer you a perfect fit around the calves as well as keeping your feet very warm. Available in vibrant choice of colours in sizes UK 3-8  Insu-Foam Ultra™ - a compression set of less than 7% compared to 20-25% found in other neoprene boots on the market 5.0 Technology™ - A moisture wicking terry knit liner for the ultimate comfortable stretch around the calves Removable 6mm Nitrocell™footbed which uses a nitrogen bubble structure which increases the cushioning and insulating properties from cold surfaces Super-Dri ™Fleece lining which is soft and extremely warm and comfortable Hard Toe™ Technology for superior protection Under Foot Chassis™for a bouncy comfortable shock absorbing sole 2mm natural rubber shell for a tough exterior that protects the boot with a durable water shedding finish and protects the boot from brambles and rough terrain A comfortable self regulating temperature range of -20°C to 20°C making it great for cold slippy conditions Self hardening layers of Epoxy Impregnated material to stiffen the toe and underfoot chassis for a sure footed platform The sole is the Trax™with Hexzorb™ technology moulds a shock absorbing component into the heel for added comfort Multiple small lugs give maximum lift when you push off the ground with a lateral stability lug to help with balance and a prominent heel for braking down hill Colour: Violet, Tawny Red, Bell Weather Blue, Stormy Grey; Size: UK3 EU36, UK4 EU37, UK5 EU38, UK6 EU39/40, UK7 EU41, UK8 EU42