October Mountain Compression Arm Guard Jacket Fit Realtree Edge Large. The stretch fabric allows for clothing to stay tight against the arm for bow string clearance while wearing layer(s). Made of stretch fabric for a snug fit the jacket-fit measures 9.5" (L) with 5.25" forearm and 4" wrist openings. Specifications for October Mountain Compression Arm Guard Jacket Fit: Manufacturer: October Mountain Size: Large Features of October Mountain Compression Arm Guard Jacket Fit: Made from stretch fabric for compression fit Designed for comfortable protection Jacket size: 9.5"L with 5.25" forearm and 4" wrist opening One size fits most Package Contents: October Mountain Compression Arm Guard Jacket Fit October Mountain 1601162: Compression Arm Guard Jacket Fit Realtree Edge Large