MSR's Munro Bothy uses lightweight waterproof fabric to produce an amazing emergency or lunchtime shelter when the weather closes in.
MSR says:
Emergency stormproof shelter for up to 4.
MSR's Munro Bothy 4 uses lightweight 30 Denier fabric to provide the its waterproof protection. This type of shelter is brilliant in use, with a person at each end providing the support, sitting on waterproof nylon 'seats', the protection it affords is amazing - when its blowing a gale outside with wind and rain, inside is remarkably still, dry and warms up very quickly.
The chimney vents provide excellent ventilation whilst still making sure that you are 100% protected from the weather.
Billed as an emergency shelter its just as useful during a lunch-break when the weather's bad.