Gymstick Pro Exercise bands are low-protein and low-powder, so they don′t cause the discomfort of a traditional exercise band due to the mess caused by the powder, and you don′t have to worry about latex allergies either. (Note: powder is used because of the stickiness of the latex) Latex allergy has been resolved in two ways: first, most of the proteins in the latex are removed from the Gymstick Pro Exercise bands. Second, the Gymstick Pro Exercise bands are washed to remove excess powder, thereby reducing the possibility of the powder acting as a protein carrier to the skin of the wearer in skin contact. 6 different resistance options available