Estwing is THE brand for geologists, amateur or otherwise, and this bag is the very top of the line. With padded compartments for everything from specimens to cell phones, this bag can handle everything you throw at it and more. The bright blue color keeps it from getting lost among the rocks when you are scrambling on a scree pile, trying to get the perfect sample, and the Estwing logo on the back will draw quite a few jealous gasps from your fellow rockhounding colleagues. Priced high, but worth it for the hardcore rock and mineral collector. You’ll wonder what you ever did without it!