Check the listing for details. ELASTO-GEL CRANIAL CAP MIGRAINE HOT COLD THERAPY 2 SIZE. Condition: New. Listed at 56.99 USD. EG-CAP1-SM/MEDPurchasePrice26.2StorageLocationEG-CAP1-LG/XLPurchasePrice31.8StorageLocation --> Elastogel Cranial Cap The Elasto-Gel™ cranial caps are primarily used for cold therapy to aid in relief with various headaches or to be used as a cool-down product after vigorous workouts to maintain over-heated body temperatures. The Elasto-Gel Cranial Cap is a hot or cold pack designed to provide non-chemical headache pain relief (no aspirin, etc), and treatment of migraine headaches, hypothermia, and hyperpyrexia or heat stroke. The cap fits the contour of the head to give heat/cold transfer uniformly over the whole area. The gel base of the cap is covered with a four-way stretch Lycra nylon fabric to allow the cap to fit the shape of the head to be comfortable. The cap is designed to treat the neck area as well, since many headaches are associated with muscle tension and nerve pressure of this area.The product is available in two sizes. (based on circumference of head 1" above ear) SM/MED has the following dimensions: height is 11.6 inches (29 ½ cm) for consideration of amount of hair user has; crown of head fits 14.5 inches or less (37 cm or less) neck area fits 11.8 inches or less (30cm or less). Hat size 8 and smaller . LG/XL has height of 12.2 inches (31 cm) which may be more appropriate for someone who has thick hair; crown fits 18.1 inches (46 cm) or less and neck area fits 13.7 inches (35 cm) or less.