wetsuits

A wetsuit is a close-fitting garment worn for water activities to insulate the body in cold water. It works by limiting water flush and trapping a thin layer of water between the skin and the suit, which the body then warms to reduce heat loss. Wetsuits are commonly made from neoprene, a synthetic rubber with gas bubbles that provides insulation and buoyancy.

Wetsuits come in varying thicknesses, measured in millimeters (mm). Thinner suits (1–3 mm) are used in warmer conditions, while mid-range (3–4/4–5 mm) and thicker suits (5–7 mm) are used in cooler water. Styles range from full suits that cover the torso and limbs to spring suits that leave the legs or arms exposed, and shorties that have short sleeves and legs. Seams can be designed to minimize water entry through options such as sealed or taped seams, and zipper configurations include back-zip, chest-zip, or side-zip for easier donning and reduced water ingress. Additional features may include reinforced knees, flexible panels, and pre-bent seams to aid movement.

Accessories such as gloves, booties, and hoods are often worn with wetsuits for extra warmth in cold water. Proper fit is important: a snug suit reduces water movement and promotes insulation while allowing comfortable movement. Care involves rinsing with fresh water after use, avoiding heat sources, drying inside-out away from direct sun, and storing flat or hanging.

Wetsuits are widely used in surfing, diving, snorkeling, windsurfing, and other water sports, and have evolved since their mid-20th-century development to balance warmth, buoyancy, flexibility, and durability.