Team Teach - Avengers Original Multifunctional Tubular Kids. Multifunctional Avengers neck tubular for kids (4-12 years) designed with recycled materials. Comfortable, stretchable and featuring sun protection, the Original Avengers neck tubular for Kids has plenty of possibilities. Multifunctional product designed for all-year-round use. Ideal protection against the cold during high intensity outdoor activities such as trail running, trekking, bouldering, hiking, horse riding or cycling. Design: Avengers. One Size. Designed for kids (4-12 years).