Multi-X Lycra Shorts - Base Layer Compression, Mini to XXL | Optimum Sport
4.4 258 Amazon reviews- Snug base layer fit
- Breathable fabric
- Elasticated waistband
- Waist 58 to 111 cm
Sized by waist. A close, snug fit: if you are between sizes, choose the larger one. Find your size
Multi-X Lycra Shorts - Base Layer Compression, Mini to XXL | Optimum Sport
- Rated 4.4 by 250+ Amazon buyers
- Base layer for training and match day
- 5 colours
- Boys' to adult XXL
- Free UK delivery over £35
- Same-day dispatch by 2pm
- Designed in Wigan since 1996
Why Multi-X
Support Where You Need It
Base layer shorts for training, match day and everything in between.

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Supportive base layer fit
A snug, close fit supports the hamstrings and thighs and helps reduce chafing.
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Breathable and durable
Hard-wearing materials that stay breathable, even in intense sessions.
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Secure waistband
An elasticated waistband keeps them locked in place as you move.
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Wear alone or underneath
On their own or under shorts and kit, for rugby, football, running, cycling and the gym.
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Match your kit
Black, Navy, Red, Royal Blue or White.
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Boys' to adult sizes
Waist sizes from 58 cm up to 111 cm, so a whole squad can match.
See It in Action
Made for training, match day and the gym.
Description
Elevate your training and protect your muscles with the Optimum Multi-X Lycra Shorts. Designed as functional compression sportswear, these heavyweight base layer shorts are a must-have for athletes who demand both durability and performance in cold conditions.
SPECIFICATIONS:
- Product type: Compression shorts
- Fit: Compression
- Fabric weight: Heavyweight
- Layer: Base layer — built for cold-weather training
- Breathability: Breathable
- Waistband: Elasticated with drawstring
- Sizes: SB, LB, S, M, L, XL, XXL
- Colours: White, Navy, Red, Blue, Black
- Suitable for: Winter matches and outdoor training
WARM BASE LAYER PROTECTION:
Don't let the cold slow you down. The close-fitting, heavyweight base layer keeps your hamstrings and thighs warm and ready for action during winter matches and outdoor training.
ENHANCED SPORTS PERFORMANCE:
Built for serious training. The compression fit supports muscle temperature regulation, helping to reduce fatigue and support your overall athletic output.
PREMIUM BREATHABILITY & DURABILITY:
Comfort that keeps up. High-quality, hard-wearing materials balance rugged durability with breathability, even during intense workouts.
SECURE, ADJUSTABLE FIT:
Stay locked in. An elasticated waistband with drawstring gives a secure, snug fit that moves with your body and adjusts to how you like it worn.
Available in White, Navy, Red, Royal Blue and Black, in sizes Mini, SB, LB, S, M, L, XL and XXL.
What colours are these shorts available in?
White, Navy, Red, Royal Blue and Black.
What sizes does this come in?
Mini, SB, LB, S, M, L, XL and XXL.
Additional Information
| Size |
SB, LB, S, M, L, XL, XXL |
|---|---|
| Color |
White, Navy, Red, Blue, Black |
Returns Policy
Christmas Returns
For all purchases made through Optimum Sport between October 1st and December 31st, the standard returns window has been extended. Customers will have until January 31st to return eligible items.
Returns Policy
In the unlikely event that you are not completely satisfied with any of the products you have brought from Optimum Sport UK you may return unused and unworn goods along with all original packaging and labels within 30 days of receipt for a full refund. Please note we do not offer an exchange service items will need to be returned for a refund and reordered.
RETURNS EXCLUSIONS
The following goods may not be returned for a refund or exchange unless faulty:
- Any worn items.
- Any other items of clothing that are not in their original packaging with labels attached.
We do not cover return postage costs, unless, an error has been made on our behalf. We recommend that you use a reputable courier (e.g. Parcelforce for larger items and Royal Mail for smaller items). We cannot accept responsibility for goods lost in transit without proof of postage. Once we have received your item(s) please allow up to 10 working days for us to process your return. Refunds will be made back to the original payment method used at the time of purchase, please allow up to 3-5 working days for this to appear in your bank.
INTERNATIONAL ORDERS
The buyer is responsible for the return of the goods and cost of return postage, and in case of an exchange, the re-delivery costs.
FAULTY GOODS
For purchases under 30 days from the date of receipt, we will exchange the faulty item at our expense. On returning the items, please include proof of return cost so that we can reimburse this charge.
For purchases over 30 days from the date of receipt but less than 12 months old, please send back the faulty item to the address below, along with a covering letter stating the fault, your order number or actual date of purchase and your daytime contact telephone number. Once received we will inspect the item and repair, replace, offer a like for like replacement or return the item if we feel there has been no manufacturing fault. Any items over that period have been purchased outside of our 12 month policy cannot be accepted.
On returning the items please include proof of return cost so that if the item is found to be faulty, we can reimburse this charge.
Please return your item(s) including to:
Optimum Sport
26-28 Cinnamon Brow Business Park
Higher Ince
Makerfield Way
Ince-in-Makerfield
Wigan
WN2 2PR
Please include your full name, email address used to place the order and order number if you know this. Alternately download our returns form by clicking here
Find Your Size
Waist measurements from the Optimum shorts size guide. Choose a size to select it above.
Small Boys
Junior players
- Waist
- 66–73 cm
- Waist (inches)
- 26 in
€14,95
Large Boys
Older juniors
- Waist
- 73–76 cm
- Waist (inches)
- 28 in
€14,95
Small
- Waist
- 76–84 cm
- Waist (inches)
- 30 in
€15,95
Medium
- Waist
- 84–92 cm
- Waist (inches)
- 32 in
€15,95
Large
- Waist
- 92–99 cm
- Waist (inches)
- 34 in
€15,95
X Large
- Waist
- 99–106 cm
- Waist (inches)
- 36 in
€15,95
XX Large
- Waist
- 106–111 cm
- Waist (inches)
- 38 in
€15,95
Verified buyers
What Customers Say
Reviews from customers who bought Multi-X lycra shorts on Amazon.
Every Detail Considered
A closer look at the Multi-X shorts, plus the size guide.
Complete Your Match-Day Kit
Socks, protection and gloves to wear with your base layer.
Multi-X Shorts Questions, Answered
Which size should I choose?
Measure around your waist and use the size finder above. Sizes run from Mini (58–66 cm) to XXL (106–111 cm). They're a close, snug fit, so if you're between sizes, choose the larger one.
What do SB and LB mean?
SB is Small Boys (66–73 cm waist) and LB is Large Boys (73–76 cm). Adult sizes run from S to XXL.
Can I wear them under my shorts?
Yes. They're a base layer, made to be worn on their own or under shorts and kit.
Which colours are available?
Black, Navy, Red, Royal Blue and White.
Can I order for my whole team?
Yes. Choose the sizes you need here, or for larger squad orders use our bulk enquiry form and our team will send a quote.
How quickly will they arrive?
Orders placed by 2pm Monday to Friday are dispatched the same day. Standard UK mainland delivery is free on orders over £35 and takes 2–5 working days.
What if they don't fit?
Return them unused and unworn in their original packaging within 30 days of receipt for a full refund, then place a new order for the size you need. Orders placed between 1 October and 31 December can be returned until 31 January.



















