Lightweight Running T-shirt - I Thought They Said Rum

Stay cool and comfortable with this breathable, lightweight running t-shirt, designed for life on the move. Made from 100% polyester mesh, it delivers excellent ventilation, a relaxed fit, and extra length for confident coverage — ideal for training, local Parkruns, 10ks, charity runs, or the London Marathon.

Whether you’re chasing a PB, jogging for coffee, or just enjoying the terrible pun on your chest, this fun running t-shirt combines performance and personality. Perfect for runners and sports fans, it also makes a thoughtful gift for birthdays, race day treats, or marathon supporters.

Why you’ll love it:

Breathable mesh fabric keeps airflow high during warm runs

Lightweight feel at just 140 g/m² — ideal for training and races

Relaxed unisex fit for comfort without cling

Extended length for extra coverage while running

Elastic, durable fabric that holds its shape

Raglan sleeves for unrestricted arm movement

Reinforced collar binding for long-lasting wear

Tear-away tag for zero distractions


Fit & fabric details:

100% breathable polyester (mesh)

Fabric weight: 4.13 oz/yd² (140 g/m²)

Relaxed unisex fit

Side-seamed construction

Short raglan sleeves

Classic round neckline

If you’re between sizes and prefer a more fitted running feel, consider sizing down.

Care instructions:

Machine wash cold

Wash inside out

Do not tumble dry

Do not iron directly on print

Important notes

Due to the lightweight mesh fabric, black inside labels may be slightly visible from the outside.

Large DTF prints on lightweight fabrics may feel slightly heavier — we design prints with comfort and wearability in mind.

Good to know:

Printed to order

Blank jersey by SOL’S

Blank product sourced from China

Size guide