Oat Bars with Soya Protein Crispies and Salted Caramel Flavour Topping. Let's Care for Our Planet Together. Enjoy as part of a balanced diet and a healthy lifestyle. Covered in a layer of rich caramel flavoured topping with a touch of sea salt, these are a delicious alternative to your average cereal bars. Not only is TREK Salted Caramel Protein Flapjack made with Natural Ingredients, but it also uses Plant Based Protein and is Vegan and Gluten Free!