The Timberland Premium 6 Inch Lace Up Waterproof boots, designed to withstand even the rainiest days, feature a construction with sealed seams and an upper made from waterproof Premium Timberland Leather, a lining crafted from ReBOTL fabric, made with at least 50% recycled plastic, and a warm 400-gram PrimaLoft insulation. Set out in search of new adventures, rain or shine, with these durable boots, created to provide you with unparalleled support and performance, allowing you to exceed all expectations. Features: Upper made from waterproof Premium Timberland Leather Timberland supports responsible leather manufacturing through the Leather Working Group Lace-up closure Padded collar 400-gram PrimaLoft insulation Lining made from ReBOTL fabric, a material crafted with at least 50% recycled plastic Removable anti-fatigue insole Steel shank for enhanced arch support TPR welt Rubber lug outsole Construction with sealed seams Technologies: ReBOTL fabric This environmentally friendly fabric is made from RPET (recycled polyethylene terephthalate) textile filament, created from non-biodegradable recycled PET plastic bottles. This material allows for the design of products made with 50% recycled PET content, significantly reducing the environmental impact of certain production processes. Certified Tannery One or more of the main components use at least 50% leather tanned in facilities with silver certification granted by an external environmental audit. The Leather Working Group evaluates and ranks these tanneries based on energy consumption, waste generation and disposal, and water treatment. PrimaLoft PrimaLoft insulation is a technology with permanent water resistance designed for the United States military. Even when wet, it retains its insulating properties as well as its lightweight nature to provide warmth and comfort. It is the best synthetic insulation on the market.