Guide

SB on Nike shirts means Nike Skateboarding—the SB line marking tees built for skate comfort, free movement, and tougher wear.

In most searches, the CG belt term means a Coast Guard uniform belt; in fashion it can be a logo belt, and in aviation CG means center of gravity.

On fishing rods, line class is the recommended line strength range the blank is built to handle for casting, drag, and fighting fish.

The green shirt marks the leader of the Tour de France points classification, earned by scoring at stage finishes and intermediate sprints.

FC3 on sunglasses means Filter Category 3—a dark tint (8–18% VLT) suited to bright sun and okay for daytime driving, not for low-light.

In haircuts, “texture” means strand size and cutting methods that remove bulk or add movement for a softer, lived-in finish.

PFD in life jackets stands for personal flotation device, the term used for wearable buoyancy aids approved for boating and water safety.

PFD stands for personal flotation device, the life vest or buoyancy aid that keeps a person afloat and easier to spot in the water.

The CV boot seals CV-joint grease and keeps out water and grit so the joint stays lubricated, quiet, and able to flex with steering and suspension.

In sneakers, GS means grade school—youth sizing (about US 3.5Y–7Y) built for kids’ proportions; adults with small feet can wear GS too.