San Francisco 49ers Samuel Senior Nike® Game Jersey

100% Genuine & Officially Licensed

Every jersey sold by Sports Treasures is genuine, officially licensed merchandise from the brand shown on the product page. We do not sell counterfeit jerseys or unauthorized reproductions.

Our jerseys include the original manufacturer and league identification appropriate to the product, including official brand labels, tags, and league marks.

Sports Treasures has served sports fans through our retail stores and online for decades. Shop with confidence knowing you're receiving genuine merchandise from an established sports retailer.

Most orders ship within 1–3 business days, excluding weekends and holidays.

Delivery time begins after your order has shipped and depends on the shipping method selected at checkout.

Estimated transit times:

• 
  UPS Ground Saver: 3–7 business days
  
• 
  UPS Ground: 1–4 business days
  
• 
  UPS 3 Day: 3 business days
  
• 
  UPS 2 Day: 2 business days
  
• 
  UPS Next Day: 1 business day
  

Shipping rates and delivery estimates are calculated at checkout.

Please note orders do not ship same day - most orders are shipped within 1-3 business days. Orders do not ship on weekends or national holidays. 

Live UPS rates will be calculated at checkout with estimated delivery timeframes.

The shipping timeframe for the shipping speed selected does not start until after our processing time of 1-3 business days before shipping.

Your shipping confirmation email will provide an updated package arrival time. Tracking availability varies based on the types of items purchased, the selected shipping method, and the carrier of your item. Please note, it may take up to 48 hours for a carrier to scan your order into the tracking system.This means your tracking number may not provide updates for up to 48 hours.

NIKE JERSEY FIT & SIZE GUIDE

Measurements are body measurements, not jersey dimensions.

MEN'S MLB

Replica — Relaxed everyday fan fit.

Limited — Premium, more structured standard fit.

Stadium — Premium styling with a relaxed, roomy fit.

Authentic / Elite — Premium on-field-inspired construction with numbered sizing and a longer body.

Replica / Limited / Stadium

Size — Chest / Waist

S — 34–36" / 28–30"

M — 38–40" / 32–34"

L — 42–44" / 36–38"

XL — 46–48" / 40–42"

2XL — 50–52" / 44–46"

3XL — 54–56" / 48–50"

4XL — 58–60" / 52–54"

5XL — 62–64" / 56–58"

Fit: Replica + Stadium = relaxed. Limited = standard.

Authentic / Elite

Jersey Size — Approx. Size — Chest / Waist

40 — M — 38–40" / 32–34"

44 — L — 42–44" / 36–38"

48 — XL — 46–48" / 40–42"

52 — 2XL — 50–52" / 44–46"

56 — 3XL — 54–56" / 48–50"

60 — 4XL — 58–60" / 52–54"

Fit: Intentionally longer through the body for an on-field baseball fit.

MEN'S NFL

Game — Comfortable, relaxed fan fit.

Limited — Premium, more structured fit.

Elite — Premium on-field-inspired performance fit.

Legend — Lightweight, streamlined fan fit.

Size Guide

Size — Chest / Waist

S — 35–37.5" / 29–32"

M — 37.5–41" / 32–35"

L — 41–44" / 35–38"

XL — 44–48.5" / 38–43"

2XL — 48.5–53.5" / 43–47.5"

3XL — 53.5–58" / 47.5–52.5"

4XL — 58–63" / 52.5–57"

Fit: Choose your normal size. Size up for extra room or layering.

WOMEN'S MLB

Women's MLB jerseys have a more tailored fit.

Size — Bust / Waist

S — 34.5–35.5" / 27.5–28.5"

M — 36.5–37.5" / 29.5–30.5"

L — 39–40" / 32–33"

XL — 41.5–42.5" / 34.5–35.5"

2XL — 44–45" / 37–38"

YOUTH NIKE JERSEYS

Size — Height / Chest / Waist

S (8) — 50–55" / 28" / 25"

M (10–12) — 55–60" / 30.75" / 26.75"

L (14–16) — 60–65" / 34" / 28.75"

XL (18–20) — 65–69" / 36" / 30"

FIT & MEASURING

Chest/Bust: Measure around the fullest part.

Waist: Measure around your natural waist.

Between sizes? Choose smaller for a closer fit or larger for a relaxed fit/layering.

If chest and waist fall into different men's sizes, prioritize chest measurement.

Sizing may vary slightly by style. Follow any product-specific sizing note when provided.

We have a 30-day return policy, which means you have 30 days after receiving your item to request a return. All returned items must be unworn, unwashed, and in new condition to be eligible for a refund.

Please note that all items purchased on sale, including items marked Sale or Final Sale, are not eligible for returns, refunds, or exchanges.

To start a return, you can use our return portal here to submit a return and choose whether you want to receive a refund or exchange for a new item:

https://www.sportstreasures.com/apps/aftership-returns-center

If the item is defective or the order is incorrect, you can also email us within 7 days of receiving the product at orders@sportstreasures.com so we can help make it right.