When evaluating bagpipe cases, prioritize internal dimensions to ensure compatibility with various drone lengths. Look for high-density foam padding (minimum 20mm) or hard-shell ABS/Carbon Fiber exteriors for maximum impact resistance. Essential features include moisture-resistant interior lining, heavy-duty YKK zippers, and reinforced stitching at stress points. For premium models, verify the inclusion of adjustable internal straps to secure the pipes and dedicated compartments for chanters, reeds, and maintenance tools.