Evans Hybrid Series Marching Snare Side Drum Head, 13 Inch 13" Hybrid Marching Snare Bottom head is made using imbedded high-tensile fibers between two ultra-thin layers of clear film Produces that sought after drum corps sound while providing less stretch than a polyester bottom head Produces a more crisp snare response than a standard Kevlar bottom head Projects in the largest of stadiums while controlled in the indoor environment All Evans drum heads are designed, engineered and manufactured in the USA