Amazon.com: RUGPADUSA - Dual Surface - 8'x10' - 1/4" Thick - Felt + Rubber - Non-Slip Backing Rug Pad - Safe for All Floors : Home & Kitchen
DuraVinyl Marine Flooring Somerset Series High Density Felt
Florida Keys 75 Felt Backing Slate Grey Carpet
Amazon.com: KOECKRITZ Soft and Cozy Area Rugs with Latex Free Soft Felt Backing / Green Label Plus / Color: Khaki 1825 (3' x 5') : Home & Kitchen
RUGPADUSA - Dual Surface - 9'x12' - 1/4" Thick - Felt + Rubber - Non-Slip Backing Rug Pad - Adds Comfort and Protection - Safe for All Floors and Finishes - Walmart.com
Backings of carpet - Carpet by AW (Associated Weavers)
Amazon.com: Polymat 3ft x 48" Wide 3'x4' Grey Charcoal Felt Fabric Carpet 1 Yard Roll, Extremely Durable; Stands up to Heavy use Latex Backed Easy to Cut, fit, and Mold to Desired
loomBloom Dual Surface - Felt & Rubber - Non-Slip Backing Rug Pad Carpet Pad | eBay
Which Carpet Backing is best? And does it really matter? - Underlay 4u