AB Lifestyles Polartec RV Blanket fleece Made in USA RV Blankets made of Polartec 200 Fleece SAND color We make these specifically to fit mattresses in RVs and use our "No Tuck" design which features elastic sewn into the foot of the blanket so it STAYS ON the mattress! Polartec is well known for its warmth, being lightweight and easy care!