Check the listing for details. GoPro Mountain Games Artwork Pull String Bag Nature Valley. Condition: New other (see details). Listed at 20.00 USD. The GoPro Mountain Games Artwork Pull String Bag powered by Nature Valley is a unique and interactive product designed for outdoor enthusiasts. Featuring artwork from the GoPro Mountain Games, this pull string bag adds a fun and artistic touch to your outdoor adventures. With its durable construction and convenient pull string design, this bag is perfect for carrying essentials while participating in outdoor sports like climbing and caving. Stand out from the crowd and showcase your love for nature with this stylish and functional product.