Instruct: Classify Amazon reviews into positive or negative sentiment
Query: USMC Khaki Sun Helmet

The helmet arrived in perfect shape, and only required the installation of a lace to adjust the headband size. The helmet's quality far surpasses my previous "made in Vietnam" helmet. I was so pleased with it that I've ordered another to keep in reserve.The helmet is of a "one-size-fits-all" variety, so folks with a large head may push the maximum size limit - I normally wear a size 7 3/8, and feel that I'm almost there.