Skip to product information
Gray hoodie with a yellow BL101 logo on a white background
  • Gray hoodie with a yellow BL101 logo on a white background
  • Gray hoodie with a yellow patch on the sleeve against a white background
  • Person wearing a gray hoodie with a yellow BL101 logo in a gym setting
  • Person wearing a gray hoodie with a yellow BL101 logo in front of a sports net.
  • Person wearing a gray BL101 hoodie with yellow accents in a gym setting
  • Gray jacket with yellow interior and BL101 branding on a blurred outdoor background
  • Person wearing a gray hoodie with yellow BL101 logos in a gym setting
  • Gray fleece jacket with yellow 'BSBL Tech' logo on sleeve against a blurred sports field background
  • Gray hoodie with a yellow BL101 logo on a white background
  • Gray hoodie with a yellow patch on the sleeve against a white background
  • Person wearing a gray hoodie with a yellow BL101 logo in a gym setting
  • Person wearing a gray hoodie with a yellow BL101 logo in front of a sports net.
  • Person wearing a gray BL101 hoodie with yellow accents in a gym setting
  • Gray jacket with yellow interior and BL101 branding on a blurred outdoor background
  • Person wearing a gray hoodie with yellow BL101 logos in a gym setting
  • Gray fleece jacket with yellow 'BSBL Tech' logo on sleeve against a blurred sports field background
Diamond Tech Side Vented Youth Hoodie - Gray/Yellow

Diamond Tech Side Vented Youth Hoodie - Gray/Yellow

5.0
Rated 5.0 out of 5 stars
66 Reviews
$69.99
Size
Color
SOLD OUT - Notify me when available
Product Description

From the cage to the classroom to the couch, this hoodie is built to keep up with every inning of your life. The Diamond Tech Side Vented Youth Hoodie - Gray/Yellow is built for the off-season ballplayer - engineered with performance details to keep you warm during fall workouts, yet breathable enough for those cage sessions and bullpen drills.

Crafted with lightweight fabric and mesh venting, this hoodie lets you move freely and open the side-zip vents to add airflow when the reps heat up.

  • 90% polyester/10% spandex
  • Zippered side vents with mesh lining

  • Kangaroo pocket with zipper storage

  • Fits true to size
Sizing & Care

SIZING AND FIT FOR DIAMOND TECH SIDE VENTED YOUTH HOODIE

SIZING: TRUE TO SIZE

CARE: MACHINE WASH COLD & AIR DRY

SIZE (IN) YS YM YL YXL
Sleeve length 21.375 22 22.625 23.25
Muscle width 6.75 7.25 7.75 8.25
Chest width 15.25 17.25 19.25 21.25
Bottom Opening 15.25 17.25 19.25 21.25
Sleeve opening 3.375 3.5 3.625 3.75
Body length Front 18.5 20.5 22.5 24.5
Armhole Straight 8.125 8.625 9.125 9.625
Hood Length 12.625 12.75 12.875 13
Hood Width 9.5 9.75 10 10.25
Shipping & Returns
Shipping Policy:

We offer standard and expedited shipping options. Orders typically ship within 7-10 business days, with delivery times varying based on your location. You'll receive a tracking number once your order ships. Please note that shipping times are estimates and are not guaranteed.

If your product came in a box, such as an arm sleeve or a water bottle, you must return it in its original packaging in order to receive a refund.
Return Policy:

We accept returns within 30 days of purchase for unworn and unwashed items with original tags. To initiate a return, please visit our portal. Shipping fees for returns are the responsibility of the customer unless the item is defective or incorrect. If you received an incorrect or defective item, please reach out to info@bl101.com for assistance.

* Shipping and return policy is subject to change around holidays and other events.

Lightest Weight

Heaviest Weight

Adult model wearing black and teal Diamond Tech Pro Cage Jacket jacket
Functionality: Performance
Fabric content: 90% Nylon / 10% Spandex
  • Wind & water-resistant
  • Waterproof zippered front pocket
  • Athletic fit and silhouette for enhanced performance
  • Hidden waist zipper
The Short Sleeve<br> Hoodie (V2 & V3)
Functionality: Performance
Fabric content: 89% Polyester / 11% Spandex
  • Breathable, moisture-wicking fabric
  • Stretchy, drawstring hood
  • Keeps arms cool
  • Athletic fit and silhouette for enhanced performance
  • Front pouch pocket
Poly-Span<br> Knit Hoodie
Functionality: Everyday Wear
Fabric content: 94% Polyester, 6% Spandex
  • Athletic fit
  • Tapered at hem
  • Closer to body
  • Recommend sizing up for comfort
  • Slick handfeel on outside
  • Soft micro fleece on inside
Person wearing a gradient green and pink hoodie with 'Baseball Lifestyle 101' text in front of a colorful wall.
Functionality: Everyday Wear
Fabric content: 68% polyester/32% Cotton Fleece
  • Regular fit
  • Kangaroo pocket
  • Warm but breathable
  • Most colors & prints available
Smiling boy holding a baseball and glove at a baseball facility wearing a gray heather America's Pastime crewneck sweatshirt and royal blue striped mesh shorts
Functionality: Casual Wear
Fabric content: 68% polyester / 32% cotton
  • Premium cotton-polyester blend
  • Ribbed cuffs and hem for a secure fit
  • Soft-touch interior comfort
Youth model wearing gray and yellow Off-Field Waffle Performance youth hoodie
Functionality: Performance
Fabric content: 100% polyester waffle knit, athletic fit
    • Snap button hood closure with home plate design
    • Raised rubber text design
    • Right side zipper pocket
    • Ribbing at cuffs and waistband
    Adult model wearing black Diamond Tech Knit Zip hoodie
    Functionality: Performance
    Fabric content: 79% Cotton / 14% Polyester / 7% Elastane
      • Quarter zip with tonal knit paneling
      • Zippered front pocket
      • Breathable fabric
      Baseball Diamond Tech Jacquard Youth Shorts Royal Blue
      Functionality: Performance
      Fabric content: 91% Polyester 9% Spandex
      • Textured diamond pattern woven into fabric
      • Front kangaroo pocket
      • Perfect for pre or post training
      Adult model wearing green hoodie with
      Functionality: Casual Wear
      Fabric content: 100% French Terry
      • Soft and heavyweight feel with a washed, broken-in look
      • Pullover style with adjustable drawstring hood
      • Kangaroo Pocket on the front
      • Ribbed cuffs and hem
      Heavyweight<br> Cotton Hoodie
      Functionality: Casual Wear
      Fabric content: 100% Cotton Fleece
      • Heavyweight cotton
      • Regular fit
      • Kangaroo pocket
      • Warm but breathable
      • Most colors & prints available

      You may also like
      5.0
      Rated 5.0 out of 5 stars
      Based on 66 reviews
      Slide 1 selected
      Product QualityRated 4.9 on a scale of 1 to 5
      ComfortRated 4.9 on a scale of 1 to 5
      SizingRated -0.2 on a scale of minus 2 to 2
      Reviews Summary
      Customers say this hoodie features high-quality material with a lightweight, breathable feel perfect for sports and seasonal wear. The side vents and drawstring ties are frequently praised features. Many note the fit runs small, recommending sizing up for comfort. Customers appreciate the polished look and durability, with most describing it as a go-to favorite that washes well and holds up nicely over time.
      Write a Review (Opens in a new tab)
      66 reviews
      • MS
        marisa S.
        Verified Buyer
        Reviewing
        Diamond Tech Side Vented Youth Hoodie - Black/Light Blue
        I recommend this product
        What is your usual clothing size? Youth Large
        What is your height? 4' 7"
        How old are you? 10-14
        Rated 5 out of 5 stars
        1 year ago
        We love B101

        Everything we have gotten from B101 has been awesome and is great quality. It’s all my son wants to wear now. Perfect for school, training, travel, etc!

        Product QualityRated 5.0 on a scale of 1 to 5
        ComfortRated 5.0 on a scale of 1 to 5
        SizingRated 0.0 on a scale of minus 2 to 2
        Was this helpful?
      • HM
        Heather M.
        Verified Buyer
        Reviewing
        Diamond Tech Side Vented Youth Hoodie - Highlighter Blue
        I recommend this product
        What is your usual clothing size? Youth Medium
        What is your height? 4' 4"
        How old are you? 8-10
        Rated 5 out of 5 stars
        10 hours ago
        Favorite Hoodie

        Good lightweight hoodie. Pretty water repellent.

        Product QualityRated 5.0 on a scale of 1 to 5
        ComfortRated 5.0 on a scale of 1 to 5
        SizingRated 0.0 on a scale of minus 2 to 2
        Was this helpful?
      • RP
        Reena P.
        Verified Buyer
        Reviewing
        Diamond Tech Side Vented Youth Hoodie - Black/Light Blue
        I recommend this product
        What is your usual clothing size? Youth Medium
        What is your height? 4' 4"
        How old are you? 8-10
        Rated 5 out of 5 stars
        1 month ago
        EXCELLENT HOODIE

        LOVE ALL THE DETAILS OF THIS HOODIE, MAKES A GREAT GIFT

        Product QualityRated 5.0 on a scale of 1 to 5
        ComfortRated 5.0 on a scale of 1 to 5
        SizingRated 0.0 on a scale of minus 2 to 2
        Was this helpful?
      • RS
        Rebecca S.
        Verified Buyer
        Reviewing
        Diamond Tech Side Vented Youth Hoodie - Navy/Light Blue
        I recommend this product
        What is your usual clothing size? Youth Small
        What is your height? 4' 3"
        How old are you? 8-10
        Rated 5 out of 5 stars
        1 month ago
        Love this hoodie!!!

        The hoodie is just the perfect weight- not too heavy, but more than lightweight. Looks great and is super comfortable. It has become my son’s go-to hoodie.

        Product QualityRated 5.0 on a scale of 1 to 5
        ComfortRated 5.0 on a scale of 1 to 5
        SizingRated 0.0 on a scale of minus 2 to 2
        Was this helpful?
      • DP
        Dong P.
        Verified Buyer
        Reviewing
        Diamond Tech Side Vented Youth Hoodie - Black/Light Blue
        I recommend this product
        What is your usual clothing size? Youth Small
        What is your height? 4' 2"
        How old are you? 6-8
        Rated 5 out of 5 stars
        1 month ago
        Great fit

        My kid loves this hoodie. Keeps him warm and has a nice fit.

        Product QualityRated 5.0 on a scale of 1 to 5
        ComfortRated 5.0 on a scale of 1 to 5
        SizingRated -1.0 on a scale of minus 2 to 2
        Was this helpful?