Flexisleeve Prosthetic Sleeves are preflexed at 43° for maximum comfort and freedom of comfort Strong and durable neoprene construction with sharkskin grip **Not intended for Vacuum Systems Highest quality material is specially coated to prevent cracking, crumbling Provides a seal for suction sockets that contain a Below Knee one-way valve 3/16 inches thick latex-free neoprene Approximately length of 15 inches Textured interior for secure suction (not vacuum) suspension  Available in color Black SIZE CIRCUMFERENCE (in) 1 11 1/2 - 13 1.5 12 1/2 - 14 2 14 - 16 2.5 15 - 17 3 16 - 18 4 18 1/2 - 20 5 21 - 23 Engineered Silicone Products (ESP) designed the Flexisleeve Prosthetic Sleeve with the moderate to high activity individual in mind. What differentiates this prosthetic sleeve is its special coating to prevent early deterioration and a textured interior for improved grip and suspension. Coupled with a 43 degree pre-flexed position, should make completing your 25 mile cycling trip your only concern. Installation and removal of this prosthetic sleeve is relatively easy due to the latex-free neoprene material having plenty of stretch. ESP Flexisleeve Prosthetic Sleeves are great as primary or secondary suction suspension for below-the-knee amputees.  Combine with Knit-Rite's Sleeve Saver and this ESP sleeve will last you months. Materials Latex-free neoprene sleeve Care Instructions Wash with soap and cool water and rinse thoroughly as soap residue can lead to dermatitis. Air dry or lay flat on a towel. Do not use excessive heat. Do not use solvents or chlorine bleach. Precautions Rubber manufacturer’s warning: Amputees with known susceptibility to dermatitis or with broken skin should avoid contact with this material. Anyone who develops skin irritation after contact with this material should discontinue its use immediately and consult a Physician or Prosthetist. Do not wear a Flexisleeve sleeve while sleeping or if you have circulatory problems.