Polartec Fleece Vest Made in USA FRAT STORE Polartec Thermal Pro Hooded Vest Aritzia US SF Tech Polartec Vest Winter Polartec Cycling Vest Aero Cycling Gear Mountain Hardwear Polartec High Loft Vest SportFits Shop. SF Tech Polartec Vest The SF Tech vest is specially designed to offer the best possible experience in a dry suit. Polartec Power Stretch has the ability to retain warmth without restricting movement or agility during activities. Polartec is a breathable material that continuously evacuates water vapor while retaining heat. The layer in contact with the skin remains dry and comfortable. The sleeveless SF Tech vest covers the upper part of the body and is used in conjunction with other undergarments. To ensure effective heating, the vest should be worn close to the body, between the skin and the undersuit. A wide elastic crotch strap holds the clothes in place when dressing or diving. The vest is designed for the SF Tech heating system. Four internal pockets are made to receive heating pads. Two heating elements on the torso and two elements on the back. The wiring of the cables is through the lining of the sweater and openings are provided at each pad location. Thus, all cables are passed inside the garment. Need some heating Pads? https: scubadivinggear. uk products sf tech heating pads Characteristics Large crotch strap Designed for SF Tech heating system SF Tech logo on the chest Odor and bacteria resistant Materials Polartec Power Stretch Outer shell: 88% Polyester 12% Elastane Inner lining: 100% Polyester