Soft fabric case that covers the pack to protect it, and is machine washable/dryable. Keeps the original pack cleaner. Choice of fabric types. Colors are random. Additional sleeves may be ordered at $5.00 each. Sample of the Small Round Sleeve on the left. /2623 All Items Here are all the products in this category: • Sleeve - Calico • Sleeve - Flannel • Sleeve - Tye-Dyed