2025 IPA World Championship Base Layer Blue Logo
2025 IPA World Championship Base Layer Blue Logo

2025 IPA World Championship Base Layer Blue Logo

$42.63
Size:XS
Quantity:

Onboard Size Guide

How to measure

Chest

To make your measurements as accurate as possible, place a measuring tape directly under each armpit at seam and lay tape flat across chest.

Length

Measure from the high shoulder point (where neck meets shoulder) laying tape flat and straight to the bottom hem of garment, including any tapings of cuffs.

Please note

All Onboard pieces are made to order. We always try to follow this guide as close as possible but due to stitchings and factory processes we ask our customers to allow a tolerance of 1 inch. We also ask if you are in between sizes, to size up.

Unisex Jersey

Size Chest Length
XS 38-40" 28.5"
S 40-42" 29.5"
M 42-44" 30"
L 44-46" 30.5"
XL 46-48" 30.5"
2XL 48-50" 31"
3XL 50-52" 32"
4XL 52-54" 32.5"
5XL 54-56" 33.5"
6XL 56-58" 34.5"
7XL 58-60" 35"
Womens Jersey

Size Chest Length
XS 36-37" 27.1"
S 38-39" 27.8"
M 40-41" 28.3"
L 43-44" 28.8"
XL 46-47" 30"
2XL 49-51" 30.4"
3XL 53-55" 31"
4XL 57-59" 31.4"

 

Youth Jersey

Age Chest Length
4–5 26-28" 19.5"
6–7 28-30" 20.5"
8–9 30-32" 21"
10–11 32-34" 22"
12–13 34-36" 24"
14–15 36-38" 25"

 

Unisex Midlayer

Size Chest Length
XS 40-42" 28"
S 42-44" 29"
M 44-46" 29.5"
L 46-48" 30"
XL 48-50" 30"
2XL 50-52" 30.5"
3XL 52-54" 31"
4XL 54-56" 31.5"
5XL 56-58" 32"
6XL 58-60" 32.5"
7XL 60-62" 33"
Womens Midlayer

Size Chest Length
XS 37-39" 28.8"
S 40-41" 29.3"
M 43-44" 29.7"
L 46-47" 30.7"
XL 49-51" 31.3"
2XL 53-55" 31.8"
3XL 56-58" 32.2"
4XL 59-61" 32.8"

 

Youth Midlayer

Size (Age) Chest Length
4–5 28–29" 20.7"
6–7 30–31" 21.1"
8–9 32–33" 21.6"
10–11 34–35" 22.6"
12–13 36–37" 24.2"
14–15 38–39" 25.5"

 

Onboard Size Guide

How to measure

Chest

To make your measurements as accurate as possible, place a measuring tape directly under each armpit at seam and lay tape flat across chest.

Length

Measure from the high shoulder point (where neck meets shoulder) laying tape flat and straight to the bottom hem of garment, including any tapings of cuffs.

Please note

All Onboard pieces are made to order. We always try to follow this guide as close as possible but due to stitchings and factory processes we ask our customers to allow a tolerance of 1 inch. We also ask if you are in between sizes, to size up.

Unisex Jersey

Size Chest Length
XS 38-40" 28.5"
S 40-42" 29.5"
M 42-44" 30"
L 44-46" 30.5"
XL 46-48" 30.5"
2XL 48-50" 31"
3XL 50-52" 32"
4XL 52-54" 32.5"
5XL 54-56" 33.5"
6XL 56-58" 34.5"
7XL 58-60" 35"
Womens Jersey

Size Chest Length
XS 36-37" 27.1"
S 38-39" 27.8"
M 40-41" 28.3"
L 43-44" 28.8"
XL 46-47" 30"
2XL 49-51" 30.4"
3XL 53-55" 31"
4XL 57-59" 31.4"

 

Youth Jersey

Age Chest Length
4–5 26-28" 19.5"
6–7 28-30" 20.5"
8–9 30-32" 21"
10–11 32-34" 22"
12–13 34-36" 24"
14–15 36-38" 25"

 

Unisex Midlayer

Size Chest Length
XS 40-42" 28"
S 42-44" 29"
M 44-46" 29.5"
L 46-48" 30"
XL 48-50" 30"
2XL 50-52" 30.5"
3XL 52-54" 31"
4XL 54-56" 31.5"
5XL 56-58" 32"
6XL 58-60" 32.5"
7XL 60-62" 33"
Womens Midlayer

Size Chest Length
XS 37-39" 28.8"
S 40-41" 29.3"
M 43-44" 29.7"
L 46-47" 30.7"
XL 49-51" 31.3"
2XL 53-55" 31.8"
3XL 56-58" 32.2"
4XL 59-61" 32.8"

 

Youth Midlayer

Size (Age) Chest Length
4–5 28–29" 20.7"
6–7 30–31" 21.1"
8–9 32–33" 21.6"
10–11 34–35" 22.6"
12–13 36–37" 24.2"
14–15 38–39" 25.5"

 

Overview

Our Onboard Sportswear IPA Base Layer is lightweight and form fitting, meaning you’ll barely notice it under your jersey as you take action. It feels exactly how it was designed to feel, ultra soft and second-skin in nature.

Features

Ultra soft material with slim silhouette 100% Polyester Anti-microbial material prevents odor, IPA x Onboard Branding

Product features

1/4 Zip Pro Collar Jersey

Our best selling Jersey incorporates a contemporary 1/4 Zip 'Vertical' Pro Collar Style

3-4 Weeks Lead Time

This Jersey is custom made to order and will be produced and delivered within 15-20 working days.*

Fully Customisable

Customise every part of this product by adding your own logos and text to all panels of this Jersey using our Product Customiser

Silktex StayCool

Our most popular and superior fabric combines a touch of Silk with an Ultrasoft Lightweight Interlock Fabric at 140gsm

FAQ

Shipping

Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. We run discounts and promotions all year, so stay tuned for exclusive deals.

It depends on where you are. Orders processed here will take 5-7 business days to arrive. Overseas deliveries can take anywhere from 7-16 days. Delivery details will be provided in your confirmation email.

You can contact us through our contact page! We will be happy to assist you.