Back to Black | Expandable Elite Squad Backpack Collection_Drip Funk The Training Jammer is perfect

The Training Jammer is perfect for regular training with flatlock stitching

The swimsuit will continue to retain its shape even after extended use

It provides swim out and pull-back resistance to improve strength and stamina

We also offer kid's size:

First created by EarLabs AB in Sweden with support from Danish open-water swimmer

Back to Black | Expandable Elite Squad Backpack Collection_Drip Funk The Training Jammer is perfectThe ultimate backpack for training and competition. Up to 36L capacity with the ability to expand to 40L capacity. Multiple segments including fabric lined goggles compartment and waterproof base compartment for shoes and wet towels. Mesh compartment for your drink bottle and large main section with laptop pocket. Comfortable padded back panel and shoulder straps with chest strap for postural support. Please note we have a no returns policy on this