The Boulder Gear Little Boy's Nestor Insulated Bib Pants are designed for function and performance, tough enough to stand against winter's toughest elements. This insulated bib is made with waterproof and breathable BG Ultracore™ fabric with lightweight polyester insulation and an ultra-soft fleece upper that ensures your little one stays cozy and warm. This bib features adjustable shoulder straps, reinforced knees, and seat for extra durability, a lower back stretch panel for optimum freedom of movement, and internal boot gaiters to keep unwanted snow out. Additionally, this bib features Grow Cuff technology that gives you the option of extending the leg lengths to grow with your little one. Be ready for hours of snow playtime in the Boulder Gear Little Boy's Nestor Insulated Bib Pants!