The Grubs Frostline 5.0 Wellington is both insulated and waterproof, with excellent grip, expertly designed for all day comfort. Featuring a self-insulating Insu-foam Ultra bootie construction which acts as a neutral medium between the wearer and the outside. The Frostline 5.0 is a practical and classic Wellington, perfect for walking and general leisure use. The Grubs Frostline Green boot has a TRAX sole pattern, with small lugs front & rear to provide good 'push off' grip and a prominent... The Grubs FROSTLINE 5.0™ CLASSIC is a fantastic insulated and waterproof welly that you can wear all day , with excellent grip. Featuring 5mm INSUFOAM-ULTRA™ neoprene, SUPERDRI™ lining and an ankle height rubber shell, makes the FROSTLINE 5.0™ a practical classic for many outdoor activities. Features: FROSTLINE 5.0™ is insulated and waterproof, with excellent grip, made for all day comfort. 5MM INSU-FOAM ULTRA™ - gives all round foot comfort and insulation. 6mm NITROCELL™ footbed - provides a soft cushioning for an athletic shoe feel. A million microscopic nitrogen bubbles that insulate the wearer from cold surfaces. UNDERFOOT CHASSIS™ - give a sure footed platform. HEXZORB™ technology - absorbs heel strike shock for daylong comfort. SUPERDRI™ lining - is hard wearing, wicks moister away from the wearer’s foot to prevent a sweaty and uncomfortable feel. It is fungus and rot proof so will not smell like cotton-lined boots. TRAX™ outsole - superior grip on a variety of surfaces, the tread is designed to work with the action of the foot COMFORT RATING - -20ºc to +20ºc.* Please note that GRUBS boots are produced in normal U.K. sizes for men and women (unisex sizing) Only available in whole sizes, but will stretch to fit half sizes. There’s a 15mm toe allowance built into the sizing to allow for good thick socks or welly socks etc. Its also been noticed in our warehouse that all Grubs footwear is treated with an anti-blooming agent like most wellies, This protects the boots while in transit and at our warehouse.The agent is a colourless and oudourless oil, It does evaporate over time leaving no stain or appearance. However from But please note that occasionally, the inside of the box may be stained when it arrives with you.