Danita Delimont - Wildlife - Peru, Manu River Region. Giant River Otter wildlife - SA17 GJE0120 - Gavriel Jecan - T-Shirts Adult and youth sizes are a blend of 50% cotton, 50% polyester. Toddler sizes are 100% cotton. Available in white, grey, light blue or pale pink. Custom printed image applied. Washing instructions: Do not use bleach, dry on low heat, turn inside out