Sideline Sub Jacket Junior Thermal Waterproof Mini-Youth Optimum Sport

Don't let the cold sideline your young player. The Optimum Junior Sideline Sub Jacket is the ultimate pitch-side essential for kids and youth teams, engineered to lock in core body heat and block out biting windchill while they wait for their moment. This long-length, quilted coverall is a heavy-duty alternative to the classic sub suit, providing superior thermal protection across all disciplines — from football and rugby to swimming and athletics. Designed for all-weather reliability, it means that when the coach calls their name, they step onto the field warm, limber and ready for action. SPECIFICATIONS: Garment type: Long-length junior sub jacket / bench coat Weather rating: Waterproof and windproof Outer fabric: Waterproof nylon Insulation: 4oz quilted construction Closure: Full-length hook-and-loop fastening Collar: Stand collar Pockets: Two deep outer pockets Cuffs: Adjustable wrist straps Sizes: Junior XS (Mini), S (XXS / SB), M (XS / LB), L (Youth) THERMAL QUILTED PROTECTION: Stay game-ready in sub-zero conditions. A 4oz quilted waterproof nylon construction provides a thick, insulated barrier against the elements without feeling overly heavy for younger players. WINDPROOF & WATERPROOF: Defy the British weather. The rugged waterproof nylon outer shell is designed to keep the rain out and deflect the wind, keeping kids dry and shielded during long stints on the bench or poolside. HASSLE-FREE HOOK & LOOP FASTENING: On and off in seconds. A full-length hook-and-loop fastening system replaces fiddly zips, so young players can get out of it quickly when it's time to sub in — no help needed. INTEGRATED WARMTH FEATURES: Every detail counts. A stand collar seals out draughts, two deep outer pockets keep hands warm, and adjustable wrist straps let you customise the fit and trap heat. VERSATILE MULTI-SPORT USE: One jacket, every sideline. Whether they're a footballer waiting on the touchline, a rugby player between games or a swimmer staying warm between heats, this over-jacket is built for sideline comfort. JUNIOR SIZING (XS TO L): Sized for younger players and listed in standard junior alpha sizes XS to L. The label inside the jacket shows the original size name. Measurements are of the garment laid flat, and the jacket is cut generously to fit over kit. Need a bigger size? The Senior version runs from S to XXL. Size Label in jacket Chest (cm) Jacket length (cm) Sleeve length (cm) XS Mini 84 87 45 S XXS (SB) 89 94 47 M XS (LB) 94 100 49 L Youth 104 112 56 What is a sub jacket? A sub jacket is the long, insulated coat worn by substitutes and squad members while they wait to come on. It goes over your kit to hold body heat in, so muscles stay warm and ready rather than stiffening up in the cold. What sizes does the junior jacket come in? Junior sizes run XS, S, M and L. These correspond to the Mini, XXS (SB), XS (LB) and Youth labels inside the jacket. Adult sizes S to XXL are available in the Senior version.