Guide

Fine fragrance oils are concentrated perfume blends—natural and synthetic aromatics in a carrier—made for skin scents and scented products.

Felt wading boots are for steady traction on slick, algae-coated river rock when you’re standing and moving in current.

Firefighters’ suits use layered aramid fabrics with a moisture barrier and thermal liner that work together against heat and flame.

Flight socks lower leg swelling and help cut the risk of travel-related clots on long trips when fitted and worn the right way.

Flooded pants are trousers cut or worn short so the hem sits above the ankle and shows a clear gap.

Fleece jackets are soft polyester knits brushed to trap air, giving light, quick-dry warmth for everyday wear and active layering.

Firm ground football boots are built for natural grass that’s dry or slightly damp, delivering stable traction with molded studs.

Fleece-lined boots are footwear with a soft fleece interior that adds warmth, cushioning, and moisture control in cold, damp conditions.

Felt boots are widely called valenki—the Russian wool-felt winter boots—though regional names include Filzstiefel and huopikkaat.

Degrees of black belt mark senior levels within a style’s dan system, showing skill, service, and time in grade.