Kielder Men's Progel Plus Undershorts

£50

7 reviews

Padded undershorts with breathable mesh and silicone grip for comfort and performance on any ride.

Size

In stock

Free 30-Day Returns

2-Year Warranty

Secure Checkout

Why riders choose it

3D Progel Plus Trail Pad
High wicking mesh panels
Silicone grip for outer short compatibility
Fitted

Description

Built for adventure, The Kielder Men's Progel Plus Undershort uses our renowned Progel pad technology which has been engineered specifically for trail riding whether it be for longer days out on the gravel or the rootiest of MTB tracks.

The mesh waistband and strategically placed mesh panels offer a high level of breathability and help to wick away moisture keeping you comfortable and fresh whilst the silicone grip makes them compatible with any outerwear.

Delivery

UK Standard Delivery - £3.95 on all orders under £40
UK Standard Delivery - Free on orders over £40
Next Day Delivery on orders placed before 12pm - £4.95

Returns

We want you to love your Altura gear. If you’re not completely satisfied, UK customers can return unused items for free within 30 days of receipt.

Items must be in their original condition, with tags attached and in original packaging.

For hygiene reasons, some items like underwear and face coverings are non-returnable unless faulty.

SKU: AL29MPPU1-CA-XXL

View details

Size Guide

Size	Chest	Waist	Hip
XS	89-93cm	78-82cm	82-86cm
S	93-97cm	82-86cm	86-90cm
M	97-102cm	86-91cm	90-95cm
L	102-108cm	91-97cm	95-101cm
XL	108-114cm	97-103cm	101-107cm
2XL	114-120cm	103-109cm	107-113cm
3XL	120-126cm	109-115cm	113-119cm

Note: Size Guides refer to actual body measurements and not the products. Chest: Measure the chest around the fullest part, placing the tape close up to the underarms. Waist: Measure around the natural waistline (find the natural crease by bending to one side) keeping the tape horizontal. Hips: Feet together, measure around the fullest part.

Kielder Men's Progel Plus Undershorts

2XL – Change

Great fit. Comfortable. Decent amount of padding compared to the other brands.
Sizing was good.

- Andy R

Cushioned for Every Trail

Progel pad delivers targeted comfort for long gravel or MTB rides

Stay Cool & Dry

Mesh waistband and panels wick moisture and enhance breathability

Secure, No-Slip Fit

Silicone grip ensures compatibility with any outer shorts for stable, confident movement

Ride with confidence

Every Altura product is backed by a 2-year warranty covering manufacturing defects and workmanship.

30-day free returns

Test the fit. If it’s not right, return or exchange it within 30 days, free of charge.

Designed in the UK

Developed and tested for real-world British riding, from wet commutes to long-distance adventures.

New Season

SS26 Collection

Designed for Summer

From daily commutes to all-day adventures, gear up for warmer rides.

Designed for the Ride

Since 1997

Frequently Asked Questions

How do I choose the right size?

Each product includes a detailed size guide—just click the "Size Guide" link near the size selector. Our cycling gear is designed with performance fits, so if you're between sizes or prefer a relaxed fit, we recommend sizing up.

How long does delivery take?

Standard UK delivery is 2–4 working days. Express delivery is available for faster shipping 1-2 days—just select it at checkout.

How should I wash my Altura kit?

Machine wash cold at 30°C with similar colours. Avoid fabric softeners and tumble drying to protect technical fabrics.

Is there a warranty on Altura products?

Yes—Altura products are backed by a 2-year manufacturer’s warranty against defects. If you experience an issue, our support team is here to help.