Guide

Jacket sizes pair a chest number (in inches) with a length letter—Short, Regular, or Long—to match your chest and height.

Men wear breathable tops, training shorts or joggers, performance socks, and sport-specific shoes that match the workout, plus light layers and a clean bag.

On men’s dress shirts, 34/35 is the sleeve length in inches, covering wearers who fit either a 34- or 35-inch sleeve.

For men, duck boots pair with jeans or chinos; match height to weather, keep slim cuffs, and balance rugged layers for clean, everyday style.

Wear a thin, moisture-wicking liner or balaclava under a ski helmet; skip bulky hats that break fit and the goggle seal.

Wear a moisture-wicking base layer, thin ski socks, and a light mid layer under snow pants for skiing to stay warm, dry, and comfortable.

Under a swim shirt, wear a lined bikini top, swim bra, or snug trunks/briefs in quick-dry fabric for support, coverage, and no-chafe comfort.

Under a stinger suit, wear a swimsuit or nothing; add a thin rash vest or thermal layer in cool water, and avoid bulky items or rough seams.

Men wear a moisture-wicking base layer under snow pants, adding a thin mid layer only when shell pants meet harsh cold.

Men can wear dress shirts, polos, fine knitwear, or a fitted tee under a sports jacket—match the formality, fabric weight, and collar shape to the event.