OUTAD Memory Foam Bike Saddle, Anti-Skid Mountain Bike Bicycle Saddle Seat Cover Materials: Lycra fabric, Neoprene rubber, Memory foam and Anti-slip fabric. Size: 10.6" Long x 7.1" Wide x 1.4" Thick (27 x 18 x 3.5cm). Anti-slip gripping material ensures safety when cycling. Slow recovery memory foam provides softness and increases the cushioning of bike seat.